A strong choice for utility trailers combines 12V stop, turn, and tail functions with weather protection and a fit suited to the trailer’s width. The Nilight Square Submersible LED Trailer Light Kit leads this list with IP68 protection and seven listed functions, while full kits such as the MAXXHAUL 70205 add a wiring harness and marker lights. These products range from replacement tail-light pairs to broad installation kits, so the right pick depends on whether you need lamps alone or want to outfit more of the trailer at once.
Check your trailer’s wiring, mounting layout, and width before buying: several options specify vehicles under 80 inches wide, but their contents and function sets differ.
The Nilight Square Submersible LED Trailer Light Kit is the best overall pick for utility trailers because it combines IP68 waterproofing with seven functions, including stop, turn, tail, side marker, and license plate light. It is specified for 12V DC vehicles up to 80 inches wide and includes two lights. Choose a complete kit instead if you also need a wiring harness and additional marker lights; the MAXXHAUL 70205 includes those components.
Our Top Picks
Best OverallNilight Square Trailer Light Kit
IP68 protection and seven listed functions suit exposed utility trailers; the 12V kit is specified for vehicles up to 80 inches wide.
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IP68 Replacement PairThese 12V IP68 square lamps provide six functions and are specified for trailers under 80 inches wide; a wiring harness is not included.
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Best Complete KitThe submersible kit includes stop, tail, and turn lights, amber markers, a license plate bracket, mounting hardware, and a 22-foot harness.
View on Amazon- Long-Harness Kit AUTO-GEKKO Full Light Kit
- Most Components Partswcgg Trailer LED Kit
Compare the Trailer Light Options
| # | Product | Weight | Lens Material | Wattage | Voltage | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. Nilight Square Trailer Light KitBest Overall | — | Polycarbonate | 2.4 W | 12 V | View on Amazon |
| 2 | 2. Partsam Square Trailer LightsIP68 Replacement Pair | 16 oz | Plastic | 12 W | 12 V | View on Amazon |
| 3 | 3. MAXXHAUL 70205 Light KitBest Complete Kit | 2.6 lb | Plastic | 12 W | 12 V | View on Amazon |
| 4 | 4. AUTO-GEKKO Full Light KitLong-Harness Kit | — | Plastic | — | 12 V | View on Amazon |
| 5 | 5. Partswcgg Trailer LED KitMost Components | 16 oz | Polycarbonate | 12 W | 12 V | View on Amazon |
| 6 | 6. CZC AUTO Submersible LightsSubmersible left-right light replacement | 16 oz | Plastic | 12 W | 12 V | View on Amazon |
| 7 | 7. MAXXHAUL 70460 Tail LightsIntegrated license-plate illumination | 1.4 lb | Plastic | 3 W | 12 V | View on Amazon |
| 8 | 8. Wellmax Boat Trailer LightsCorrosion-conscious marine lighting | — | Acrylic | 2 W | 12 V | View on Amazon |
| 9 | 9. Nilight 16-Inch Marker BarsRed identification-bar replacement | 0.26 kg | Polycarbonate | 12 W | 12 V | View on Amazon |
| 10 | 10. Partsam Double Bullseye MarkersMulti-point side-marker upgrades | 1.6 oz | — | 6 W | 12 V | View on Amazon |
Detailed Reviews: Best Led Utility Trailer Lights

#1 · Best Overall
1. Nilight Square Trailer Light Kit
- Lens Material: Polycarbonate
- Wattage: 2.4 W
- Voltage: 12 V
Best for: Seven-function square lamp pair.
Why it ranks #1: IP68 protection and seven listed functions suit exposed utility trailers; the 12V kit is specified for vehicles up to 80 inches wide.
Seven listed functions—including license-plate lighting—give Nilight's square 12V pair broad coverage in two compact rear lamps. The IP68 waterproof, submersible kit is listed for vehicles up to 80 inches wide, including trailers, boats, trucks, RVs, and tractors.
Each square unit combines stop, turn, and tail lighting with side-marker and reflector functions, while the listed seven-function set also includes license-plate lighting. That breadth can consolidate rear and visibility roles in a two-piece replacement. IP68 waterproofing and submersible construction suit wet applications such as boat trailers. Nilight lists 12V DC operation and a maximum vehicle width of 80 inches, making electrical system and trailer width the key compatibility checks.
- Seven lighting functions listed
- License-plate light included among the functions
- IP68 waterproof and submersible
- Polycarbonate lens
- The listed maximum vehicle width is 80 inches.
Skip it if you need a complete harness and marker-light package; AUTO-GEKKO's Full Set LED Trailer Light Kit includes a 25-foot harness and amber markers.
Choose this pair for 12V owners wanting multi-function square lamps with submersible protection on vehicles no wider than 80 inches. It covers several light roles, but the listing describes a two-piece lamp kit rather than a full wiring package.
Full product details
| Brand | Nilight |
|---|---|
| Color | Red 2Pcs Trailer Light Kit |
| Compatible with Vehicle Type | RV, Tractor, Truck, trailer |
| Included Components | LED Trailer Light Kit |
| Lens Color | Red |
| Lens Material | Polycarbonate |
| Manufacturer | Nilight |
| Part Number | TL-22 |
| Manufacturer Warranty Description | 2 Years Warranty |
| Model Number | TL-22 |
| Model Year | 2025 |
| Special Feature | Submersible |
| Voltage | 12 volts |
| Wattage | 2.4 watts |
Listed on Amazon as: Nilight Square Submersible LED Trailer Light Kit,IP68 Waterproof 2PCS
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#2 · IP68 Replacement Pair
2. Partsam Square Trailer Lights
- Weight: 16 oz
- Lens Material: Plastic
- Wattage: 12 W
- Voltage: 12 V
Best for: Submersible boat-trailer lighting.
Why it ranks #2: These 12V IP68 square lamps provide six functions and are specified for trailers under 80 inches wide; a wiring harness is not included.
IP68 waterproofing pairs with six lighting functions to cover key rear and side visibility needs on a 12V trailer. Partsam supplies a left-and-right square-light pair for vehicles under 80 inches wide, making this a focused replacement option for boat trailers, campers, and other listed towing vehicles.
The combination lamps provide stop, turn, and tail signals alongside rear and side reflectors and side-marker lighting, consolidating several functions in each square unit. Their IP68 rating supports submersible use, a practical match for boat-trailer operation. The pair includes gaskets and screws for mounting, while the supplied specifications explicitly exclude a wire harness, so buyers need to account for wiring separately. Compatibility is listed for 12V vehicles under 80 inches wide.
- IP68-rated waterproof construction for submersible use
- Six functions combine signaling, marker, and reflector roles
- Left-and-right square light pair included
- Gaskets and mounting screws supplied
- A wire harness is not included, so wiring must be sourced separately.
Skip it if you need a complete wiring kit; MAXXHAUL 70205 includes a harness, markers, and a license plate bracket.
Choose this pair for a 12V boat trailer or other listed vehicle under 80 inches wide that needs submersible combination lamps. It suits replacement work, but the missing harness means it is not a complete wiring kit.
Full product details
| Brand | Partsam |
|---|---|
| Color | Red |
| Compatible with Vehicle Type | Universal for Under 80" Inch width towing vehicle, like truck, trailer, tractor,semi-trailer,Dump Truck,boat, bus, Lorry, Van, caravan, snowmobile, Camper, RV.etc |
| Included Components | 2x Square Trailer Tail Lights, 2x Gaskets, 4x Screws, (NOT include wire harness) |
| Item Weight | 16 ounces |
| Lens Color | Red Lens |
| Lens Material | Plastic |
| Manufacturer | PARTSam |
| Part Number | GTCV-0475639698 |
| Manufacturer Warranty Description | 1 year for quality issue |
| Model Number | 4332989291 |
| Model Year | 1997 |
| Special Feature | DOT Compliant, Submersible, IP68 |
| Voltage | 12 volts |
| Wattage | 12 watts |

#3 · Best Complete Kit
3. MAXXHAUL 70205 Light Kit
- Weight: 2.6 lb
- Lens Material: Plastic
- Wattage: 12 W
- Voltage: 12 V
Best for: Complete trailer wiring-kit shoppers.
Why it ranks #3: The submersible kit includes stop, tail, and turn lights, amber markers, a license plate bracket, mounting hardware, and a 22-foot harness.
A 22-foot split Y-style, color-coded harness is the practical differentiator in this 12V LED kit, helping route connections across a trailer during installation. MAXXHAUL bundles left and right combination lamps with amber clearance lights, a license plate bracket, and mounting hardware for a broader lighting refresh.
The kit combines two stop, tail, and turn lights with two amber side markers, so buyers get rear signaling and clearance lighting in one package. Its 22-foot split Y harness uses color-coded wiring, which can simplify routing and connection work across a trailer. A license plate bracket and mounting hardware are also included. MAXXHAUL lists the kit for trailers under 80 inches wide and describes the lights as waterproof and submersible.
- Includes two LED combination tail lights
- Two amber clearance lights included
- 22-foot split Y-style color-coded harness
- License plate bracket and mounting hardware supplied
- The listed fit is limited to trailers under 80 inches wide.
Skip it if you have a trailer wider than 80 inches; Nilight TL-22 is listed for vehicles up to 80 inches, not wider.
This is a sensible choice for buyers refreshing a trailer under 80 inches wide who want lights, markers, wiring, and mounting pieces together. Its bundled harness simplifies the parts list, but the stated width limit matters.
Full product details
| Brand | MAXXHAUL |
|---|---|
| Color | Red |
| Compatible with Vehicle Type | RV |
| Included Components | 1 12V LED Trailer Light Kit |
| Item Dimensions | 12 x 11.3 x 3.7 inches |
| Item Weight | 2.6 pounds |
| Lens Color | Red |
| Lens Material | Plastic |
| Manufacturer | Maxxhaul Towing Products |
| Part Number | 70205 |
| Manufacturer Warranty Description | 90 days |
| Model Number | 70205 |
| Model Year | 70205 |
| Special Feature | Submersible |
| Voltage | 12 volts |
| Wattage | 12 watts |
Listed on Amazon as: MAXXHAUL 70205 Trailer Light Kit – 12V All LED, Left and Right Waterproof Submersible for Trailers, Boat Trailer Truck Marine Camper RV Snowmobile, Red
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#4 · Long-Harness Kit
4. AUTO-GEKKO Full Light Kit
- Lens Material: Plastic
- Voltage: 12 V
Best for: Harness-and-marker kit installers.
Why it ranks #4: This IP68 full set includes two combination lights, amber markers, a license plate bracket, mounting accessories, and a 25-foot harness.
A 25-foot wiring harness and two amber clearance lights come with AUTO-GEKKO's waterproof 12V trailer kit, extending the package beyond rear lamps alone. It also includes two combination tail and turn lights, a license-plate bracket, and mounting accessories for a full-set installation.
The two combo lights handle tail and turn signaling, while the amber clearance lamps add side visibility to the package. A 25-foot harness provides a longer wiring run, and the license-plate bracket and mounting accessories help consolidate installation parts. AUTO-GEKKO specifies a smart wiring arrangement with ground, high-brightness, and low-brightness connections on each side. The kit is listed for 12V vehicles and described as IP68 waterproof and SAE/DOT compliant.
- Two combination tail and turn lights included
- Two amber LED clearance markers
- 25-foot wiring harness included
- IP68 waterproof and SAE/DOT compliance stated
- The supplied information does not specify a maximum trailer width.
Skip it if you need a stated maximum width before selecting lamps; MAXXHAUL 70205 explicitly lists trailers under 80 inches wide.
This kit suits an installer seeking rear signals, amber clearance lights, a long harness, and mounting accessories together. Its 12V and waterproof specifications are clear, but the supplied listing does not state a maximum trailer width.
Full product details
| Brand | AUTO-GEKKO |
|---|---|
| Color | Red |
| Compatible with Vehicle Type | Bus, Snowmobile, Trailer, Truck |
| Lens Color | Red |
| Lens Material | Plastic |
| Part Number | TL-SQKIT |
| Manufacturer Warranty Description | 2 YEARS BY MANUFACTURER |
| Model Year | 2022 |
| Special Feature | Dustproof, Waterproof, Full set of trailer lights Kits, High Bright, Easy-install |
| Voltage | 12 volts |
Listed on Amazon as: Full Set LED Trailer Light Kit Waterproof IP68 SAE/DOT Compliant
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#5 · Most Components
5. Partswcgg Trailer LED Kit
- Weight: 16 oz
- Lens Material: Polycarbonate
- Wattage: 12 W
- Voltage: 12 V
Best for: Full trailer lighting refresh.
Why it ranks #5: The IP67 kit bundles square tail lights, six side markers, a third brake bar, license plate bracket, hardware, and a 25-foot harness.
A 25-foot harness with a 4-flat plug anchors this broad Partswcgg kit, reaching toward the end of a trailer while supplying multiple light types. The package includes square rear lamps, six side markers, a third brake bar, a plate bracket, and mounting hardware.
The two square combination lamps work alongside six mini oval markers—two red and four amber—so the kit addresses rear and side lighting in one refresh. A 15.5-inch third brake bar adds another rear lighting element and can mount horizontally or vertically. The 25-foot harness and 4-flat plug support longer trailer runs, while the built-in driver-side plate light adds plate illumination. The square lamps are described as IP67 waterproof, and mounting hardware is included.
- 25-foot wiring harness with 4-flat plug
- Six red and amber mini oval side markers
- Third brake bar supports horizontal or vertical mounting
- Driver-side square lamp has built-in plate light
- The square lamps are rated IP67, not the IP68 rating listed for some competing kits.
Skip it if you require an IP68 rating; Nilight TL-22 is listed as IP68 waterproof, while this kit's square lamps are IP67.
This suits owners upgrading several trailer lighting zones at once, especially when a long harness and flexible third-bar orientation help with installation. Its square lamps carry an IP67 rating, a relevant boundary for immersion-focused use.
Full product details
| Brand | Partswcgg |
|---|---|
| Color | Red, Amber, White |
| Compatible with Vehicle Type | trucks, boat, trailers, semi-trailers, ships, buses, Dump Truck, tractors, caravans, snowmobiles |
| Included Components | Square led tail lights(Left+Right), 15" Led Trailer Tail Light Third Brake Bar, 2.5" Oval Side Marker Clearance Lights, 25FT Wiring Harness, License Plate Brackets, Mounting Hardware |
| Item Weight | 16 ounces |
| Lens Color | Red, Amber, White |
| Lens Material | Polycarbonate |
| Manufacturer | WCXT-US |
| Part Number | WCXT-028 |
| Special Feature | Submersible, Waterproof |
| Voltage | 12 volts |
| Wattage | 12 watts |
Listed on Amazon as: Partswcgg 12V Trailer Led Lights Tail Kit Submersible w/25FT Wiring Harness
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#6
6. CZC AUTO Submersible Lights
- Weight: 16 oz
- Lens Material: Plastic
- Wattage: 12 W
- Voltage: 12 V
Best for: Submersible left-right light replacement.
Why it ranks #6: The submersible left-and-right pair offers six shared functions plus a left-side license plate light, with LED-only construction.
The left lamp adds a license-plate light to six shared functions, giving this CZC AUTO pair a useful asymmetry for trailer rear-end replacements. Both 12V LED lights provide stop, turn, tail, reflector, and side-marker functions, with compatibility listed for vehicles under 80 inches wide.
The six common functions combine stop, turn, and tail signaling with rear and side reflectors and a side marker, reducing the need for separate lamps for those roles. The left unit adds license-plate illumination, which can keep plate lighting within the replacement pair. The set is described as submersible and suited to under-80-inch towing vehicles. CZC AUTO specifically advises connecting the white ground wire correctly to complete the circuit.
- Left light includes a license-plate light
- Six shared signaling, reflector, and marker functions
- LEDs throughout rather than incandescent bulbs
- Submersible use is specified
- The white ground wire must be connected correctly for the lights to work.
Skip it if you want wiring and marker lights in one package; Partswcgg's 12V Trailer LED Lights Tail Kit includes a 25-foot harness and side markers.
Pick this pair when replacing left and right 12V trailer lamps and valuing integrated plate lighting on the driver-side unit. It is listed for under-80-inch vehicles, and careful grounding is essential during connection.
Full product details
| Brand | CZC AUTO |
|---|---|
| Color | Red |
| Compatible with Vehicle Type | Boat, Trailer, Truck |
| Item Weight | 16 ounces |
| Lens Color | Smoke |
| Lens Material | Plastic |
| Manufacturer | CZC AUTO |
| Part Number | 101001W |
| Model Number | 8542119460 |
| Model Year | 1997 |
| Special Feature | Rear Reflector Light, Side Reflector Light, Stop Light, Tail Light, Turn Light |
| Voltage | 12 volts |
| Wattage | 12 watts |
Listed on Amazon as: CZC AUTO 12V Submersible LED Trailer Tail Lights Left&Right Reverse Lights
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#7
7. MAXXHAUL 70460 Tail Lights
- Weight: 1.4 lb
- Lens Material: Plastic
- Wattage: 3 W
- Voltage: 12 V
Best for: Integrated license-plate illumination.
Why it ranks #7: This DOT FMVSS 108-compliant pair provides stop, tail, and turn signals for trailers 80 inches wide or less, with left-side plate illumination.
Four white LEDs in the left-hand lamp illuminate the license plate, distinguishing this MAXXHAUL pair from basic rear signal replacements. The 12V set combines left and right stop, tail, and turn signals for trailers 80 inches wide or less, with DOT FMVSS 108 compliance stated.
The two combination Class A lamps handle stop, tail, and turn signaling, consolidating the principal rear-light functions in a left-and-right pair. On the left lamp, four white LEDs add license-plate illumination, so the plate-light function is part of the set rather than a separate described unit. The product is listed for trailers no wider than 80 inches and is described as waterproof. Its stated compliance with DOT FMVSS 108 is relevant for buyers replacing road-trailer lights.
- Left lamp has four white license-plate LEDs
- Pair provides stop, tail, and turn signals
- Class A combination lamps
- DOT FMVSS 108 compliance stated
- The pair does not include side-marker lights.
Skip it if you want side markers and a wiring harness in the same kit; MAXXHAUL 70205 includes amber clearance lights and a harness.
This pair fits trailer owners replacing core rear signals who also need plate illumination integrated into the left lamp. Check the stated 80-inch width limit and note that side-marker lighting is not part of this set.
Full product details
| Brand | MAXXHAUL |
|---|---|
| Color | Regular |
| Compatible with Vehicle Type | Trailer |
| Included Components | 1 pair of 12V LED Trailer Tail Light (Left and Right) |
| Item Weight | 1.4 pounds |
| Lens Color | Red |
| Lens Material | Plastic |
| Manufacturer | MaxxHaul |
| Part Number | 70460 |
| Manufacturer Warranty Description | 1 YEAR |
| Model Number | 70460 |
| Model Year | 70460 |
| Special Feature | Waterproof |
| Voltage | 12 volts |
| Wattage | 3 watts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: This product can expose you to chemicals including acrylonitrile which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov Small parts. Not for children under 3 yrs. |
Listed on Amazon as: MAXXHAUL 70460 12V LED Trailer Tail Lights (Turn/Stop/Signal-Left/Right-DOT Compliant)
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#8
8. Wellmax Boat Trailer Lights
- Lens Material: Acrylic
- Wattage: 2 W
- Voltage: 12 V
Best for: Corrosion-conscious marine lighting.
Why it ranks #8: The submersible 12V pair includes tail and turn signal lights plus stainless steel hardware, with materials described as corrosion resistant.
Stainless steel mounting hardware and corrosion-resistant materials make this Wellmax pair a marine-oriented option for boat-trailer lighting. The two 12V LED lights provide tail and turn signals and are described as submersible and waterproof, addressing the wet operating conditions associated with boat use.
The pair combines tail and turn signal functions in two 12V LED lamps, keeping the described role focused on rear signaling rather than a broader multi-function kit. Submersible, waterproof construction suits boat-trailer use, while corrosion-resistant materials and stainless steel hardware support installation in a marine environment. Each light measures 8 by 3 by 23⁄4 inches, a useful space consideration when replacing existing fixtures. The listed compatibility covers trailers and boats.
- Two 12V LED tail and turn lights included
- Submersible and waterproof construction
- Corrosion-resistant materials specified
- Stainless steel mounting hardware included
- The listed functions are limited to tail and turn signals.
Skip it if you need integrated side markers and plate lighting; CZC AUTO's 12V Submersible LED Trailer Tail Lights add side-marker and left-side plate functions.
Choose Wellmax for a boat or trailer owner prioritizing submersible lamps and corrosion-conscious mounting hardware. Its stated functions are tail and turn signals, so buyers seeking a wider set of integrated lighting roles should look elsewhere.
Full product details
| Brand | Wellmax |
|---|---|
| Color | Red |
| Compatible with Vehicle Type | Trailers, Boats |
| Item Dimensions | 9 x 6.5 x 3 inches |
| Lens Color | Red |
| Lens Material | Acrylic |
| Manufacturer | Wellmax |
| Part Number | WM51053 |
| Model Number | WM51053 |
| Model Year | 2024 |
| Special Feature | Submersible, Waterproof |
| Voltage | 12 volts |
| Wattage | 2 watts |
Listed on Amazon as: Wellmax LED Boat Trailer Lights, Submersible Marine Waterproof Tail Lights
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#9
9. Nilight 16-Inch Marker Bars
- Weight: 0.26 kg
- Lens Material: Polycarbonate
- Wattage: 12 W
- Voltage: 12 V
Best for: Red identification-bar replacement.
Why it ranks #9: These two 16-inch red bars have 11 LED outputs each and sealed housings, but their marker-bar format is less versatile than combination lamps.
Each 16-inch red bar contains 11 LED outputs with high- and low-brightness operation, enabling multiple rear-light functions in a long, narrow surface-mounted format. Nilight supplies two bars, each described for parking, stop, turn, tail, and brake lighting on trucks.
The high- and low-brightness outputs support different lighting intensities across the listed parking, stop, turn, tail, and brake functions, giving a truck owner several signaling roles in each bar. A polycarbonate front lens is sonically welded to the housing, while glue seals the rear wire lead; these construction details support the stated waterproof design. The 16-inch format is a key fit consideration, since this product is a pair of bars rather than square combination lamps.
- Two 16-inch red LED bars included
- 11 LED outputs per light
- High- and low-brightness operation
- Welded lens and sealed wire lead support waterproofing
- The 16-inch bar format is not a square combination-light replacement.
Skip it if you need square rear combination lamps; Nilight TL-22 provides a square submersible two-piece kit with seven listed functions.
Choose these bars for a truck application needing two long red surface-mounted lights with multiple signaling roles. The 16-inch format and bar-style installation are central fit considerations, especially when replacing compact square lamps.
Full product details
| Brand | Nilight |
|---|---|
| Color | 2Pcs 16" Red 11LED |
| Compatible with Vehicle Type | Truck |
| Included Components | 2PCS 16” 11 LED Red Trailer Light |
| Item Weight | 0.26 kg |
| Lens Color | Red |
| Lens Material | Polycarbonate |
| Manufacturer | Nilight |
| Part Number | TL-10 |
| Manufacturer Warranty Description | 2 Years Warranty |
| Model Number | TL-10 |
| Model Year | 1997 |
| Special Feature | Waterproof |
| Voltage | 12 volts |
| Wattage | 12 watts |
Listed on Amazon as: Nilight 16" LED Trailer ID Marker Light Bar, Red, 2-Pack
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#10
10. Partsam Double Bullseye Markers
- Weight: 1.6 oz
- Wattage: 6 W
- Voltage: 12 V
Best for: Multi-point side-marker upgrades.
Why it ranks #10: This 14-piece set provides red and amber clearance, side-marker, or identification lamps, but does not replace combination tail lights.
Fourteen oval marker lamps—seven amber and seven red—let Partsam buyers add matching clearance or identification lighting at multiple trailer positions. Each 12V double-bullseye unit measures about four by two by one inches and is listed for RVs, trailers, campers, and boats.
The amber and red lens options support placement across multiple sides or positions, while the listed side-marker, clearance, and identification roles make the set useful beyond rear combination-light replacement. Each lamp uses a surface-mount format and measures about four by two by one inches, helping buyers plan available mounting space. The product is 12V and DOT approved. Wiring exits at the lower corner according to the detailed note, so that orientation matters when positioning each lamp.
- Fourteen lamps: seven amber and seven red
- Side-marker, clearance, and identification functions listed
- 12V operation
- DOT approval stated
- These are marker and clearance lamps, not stop, turn, or tail combination lights.
Skip it if you need stop, turn, and tail signals; Partsam's 12V Submersible Square LED Trailer Light provides those combination functions.
Choose this set to add distributed amber and red marker, clearance, or identification lighting to a trailer, RV, camper, or boat. It is not a substitute for stop, turn, and tail lamps, and corner-exiting wires affect mounting orientation.
Full product details
| Brand | Partsam |
|---|---|
| Color | Amber/Red Lens |
| Item Weight | 1.6 ounces |
| Manufacturer | PARTSam |
| Part Number | 169709 |
| Model Number | 13 |
| Voltage | 12 volts |
| Wattage | 6 watts |
Avoid wiring and grounding problems
A poor ground or mismatched wire connection can keep trailer LEDs from working even when the lamps themselves are suitable. The CZC AUTO Submersible Lights specifically call out the white ground wire and the need for a closed circuit, making grounding a practical check during installation. The AUTO-GEKKO Full Light Kit lists wire roles for left and right lights, while the MAXXHAUL 70205 includes a color-coded, split Y-style 22-foot harness.
These details do not mean every trailer uses an identical existing harness: verify the trailer-side connector and wire functions before connecting anything. If you are replacing only a pair, confirm that the existing ground and connections are sound.
For a broader replacement, a kit that includes a harness may provide more of the components needed, but check the supplied instructions and your trailer layout rather than assuming it is plug-and-play.
Check width, mounting layout, and lamp role
A light can have the right functions yet still be the wrong format or fit for a trailer. Several square combination-light products specify a maximum vehicle width of 80 inches, including the Nilight Square Trailer Light Kit and Partsam Square Trailer Lights; verify your trailer’s width rather than treating that limit as universal. Also distinguish a combination tail-light pair from marker-only products.
The Partsam Double Bullseye Markers provide red and amber clearance or identification lamps, while the Nilight 16-Inch Marker Bars are bars rather than standard square tail-light housings. Neither listed item is presented as a complete stop, turn, and tail replacement.
Finally, compare the physical mounting arrangement and wire exit with your trailer before ordering. The supplied data does not provide mounting-hole dimensions for every option, so measure the existing opening and plan any mounting changes.
How to Choose Utility Trailer LED Lights
Protection for water exposure
Choose protection based on how much water and weather your trailer encounters. The Nilight Square Trailer Light Kit and Partsam Square Trailer Lights list IP68 protection, while the Partswcgg Trailer LED Kit lists IP67; the MAXXHAUL 70205 and Wellmax Boat Trailer Lights are described as submersible without an IP rating in the supplied specifications. That distinction makes an explicit rating useful when comparing products, but it does not establish identical installation or immersion conditions.
For a utility trailer that stays on the road, a replacement pair may be sufficient; for a boat trailer regularly exposed to water, prioritize products explicitly described as submersible or with a stated ingress rating. Follow the product instructions and make sure wire connections are also protected.
Replacement pair or complete kit
Decide whether you need only tail lamps or components for a wider trailer-lighting refresh. The Partsam Square Trailer Lights are a pair with gaskets and screws, but no wiring harness; the MAXXHAUL 70205 adds amber markers, a license plate bracket, hardware, and a 22-foot harness. The AUTO-GEKKO Full Light Kit and Partswcgg Trailer LED Kit each include a 25-foot harness, with the latter also listing six side markers and a third brake bar.
If your existing harness and markers are usable, a replacement pair avoids buying unneeded parts. If you are rewiring or replacing several lighting positions, a full kit may better match the job; compare harness length and included lamps with your actual trailer.
Functions and trailer-width fit
Match the lamp’s functions and stated width limit to your trailer before choosing a pair. The Nilight Square Trailer Light Kit lists seven functions and a fit for 12V DC vehicles up to 80 inches wide; the Partsam Square Trailer Lights list six functions and application to trailers under 80 inches. The CZC AUTO Submersible Lights provide six shared functions plus a license plate light on the left lamp.
By contrast, the Partsam Double Bullseye Markers are for marker, clearance, or identification use rather than a full tail-light replacement. For a narrow utility trailer needing a broad function set, a combination-light pair is the better match.
If you need only clearance lamps or an identification bar, a specialized marker product may suit that narrower role.
Which LED Trailer Lights Should You Choose?
For a 12V utility trailer up to 80 inches wide where water protection and a broad function set matter, choose the Nilight Square Trailer Light Kit: its IP68 rating and seven listed functions make it the strongest all-around fit. If you need square replacement lamps with IP68 protection and already have usable wiring, Partsam Square Trailer Lights are a practical alternative. Choose the MAXXHAUL 70205 Light Kit when you want a harness, amber markers, and a license plate bracket together.
For a longer harness and a full set, consider the AUTO-GEKKO Full Light Kit; for more lighting positions, the Partswcgg Trailer LED Kit includes six side markers and a third brake bar. The marker-only Partsam Double Bullseye Markers suit clearance or identification needs, not tail-light replacement.
Check width, wiring, and mounting before ordering.
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Frequently Asked Questions
How do I wire LED trailer lights to a 4-flat connector?
Match the connector’s ground, tail, left-turn, and right-turn functions to the corresponding functions on the lights. Confirm each wire’s function from the light or harness diagram rather than relying only on color, make secure connections, and test running lights, turns, and braking before towing.
Do submersible trailer lights need to be unplugged before launching a boat?
Follow the light manufacturer’s instructions; submersible construction alone does not establish whether a particular light should stay connected. If the instructions call for disconnecting the trailer, do so before launching. Check connections and wiring for damage, and confirm the lights work again before towing.
How can I tell whether trailer lights will fit my mounting holes?
Measure the spacing and size of your trailer’s mounting holes, then compare them with the light’s mounting dimensions and layout. The product titles here do not provide mounting-hole measurements, so verify those details in the product information or with the seller before ordering.
When should I choose a complete trailer light kit?
Choose a complete kit when you need more than replacement lamps, such as a wiring harness or additional marker lights. The MAXXHAUL 70205 includes a harness, amber markers, and a license plate bracket; the AUTO-GEKKO kit is another option when you want a longer harness and a full set.
Can marker lights replace trailer tail lights?
No. Marker lights serve clearance or identification purposes, while tail lights provide functions such as tail, stop, or turn signaling. The Partsam Double Bullseye product is a marker-only option, so use it for marker needs rather than as a replacement for required tail-light functions.
Final Words
For a 12V utility trailer up to 80 inches wide, the Nilight Square Submersible LED Trailer Light Kit is the strongest all-around choice when water protection and multiple functions matter. Pick MAXXHAUL 70205 if you also need a harness and markers; consider AUTO-GEKKO for a longer harness or Partswcgg for more lighting positions. Before ordering, confirm trailer width, wiring needs, and mounting compatibility.


