10 Best Waterproof LED Boat Trailer Lights (October 2026)

A boat trailer light spends its life being dunked, heated by the road, then dunked again. Incandescent bulbs and non-sealed housings fail at the ramp: water gets past a seam, the circuit board corrodes, and the brake light dies on the way home. The wrong type also causes legal problems, because a trailer wider than 80 inches needs clearance lights that a bare pair of tail lights will not provide. Picking the Best Waterproof LED Boat Trailer Lights depends on three things: how well the housing is sealed, whether you need a full wiring kit or just two replacement lamps, and how wide your trailer is.

The short answer: the MAXXHAUL 70205 LED Kit suits a full rewire because it bundles clearance lights and a 22 ft harness, the Partsam Square IP68 Lights suit owners who already have working wiring and want a stated IP68 seal, and the CZC AUTO Left and Right Tail Lights suit a quick swap with side or rear mounting. The rest of the list covers wired kits for narrow and wide trailers, rectangular low-profile pairs, and an oval marker-heavy option for lighter-duty use.

TL;DR: top picks at a glance

• Best overall: the MAXXHAUL 70205 LED Kit, a complete 12V LED set with two amber clearance lights, a license plate bracket and a 22 ft color-coded harness.
• Best for existing wiring: Partsam Square IP68 Lights, a pair rated IP68 with 15 diodes on the curb side and 19 on the street side, sold without a harness.
• Best for quick swaps: CZC AUTO Left and Right Tail Lights, six functions per side plus a license light on the left, with 18 gauge copper leads and back or side mounting.
• Best for a wired boat or jet ski kit: CZC AUTO 7-Function Wiring Kit, seven lighting functions with an 18 gauge pure copper harness for trailers under 80 inches.

Best Waterproof LED Boat Trailer Lights Comparison (October 2026)

#	Product	Best for	Waterproofing	Harness	Trailer Width
1	MAXXHAUL 70205 LED Kit	Full rewires	Submersible (IP rating not listed)	22 ft split Y	Not listed
2	Partsam Square IP68 Lights	Existing wiring	IP68	Not included	Under 80 in.
3	CZC AUTO Left and Right Tail Lights	Quick swaps	Submersible, sonic welded	Attached 18 gauge leads	Under 80 in.
4	CZC AUTO 7-Function Wiring Kit	Boats, jet skis	Submersible, sonic welded	18 gauge copper	Under 80 in.
5	CZC AUTO Low Profile Rectangular	Slim mounting	IP68	Not included	Under and over 80 in.
6	Wellmax Low Profile Rectangular	Replacement pairs	Sealed, submersible	Not listed	Up to and over 80 in.
7	LINKITOM Under 80-Inch Kit	Narrow trailers	IP68	22 ft plus 4 ft	Under 80 in.
8	LINKITOM Over 80-Inch Kit	Wide trailers	IP68 with drain hole	22 ft plus 4 ft	Over 80 in.
9	Nilight Square IP68 Kit	DIY rewires	IP68 with drainage	25 ft	Up to 80 in.
10	RUNHWEE 6-inch Oval	Light-duty use	IP67	Not listed	Not listed

1. MAXXHAUL 70205 LED Kit: Best Complete-Kit LED Trailer Lights for Full Rewires

• Contents: Two LED stop/tail/turn lights, two amber clearance lights, license plate bracket
• Harness: 22 ft split Y style, color-coded, UV-coated jackets
• Voltage and Power: 12V, 12 watts
• Compliance: DOT FMVSS 108
• Warranty: 90 days

Pros:

• The kit includes two amber clearance lights and a license plate bracket, so a bare trailer can be fully lit from one box.
• The 22 ft split Y harness is color-coded, which keeps the splice work straightforward on a long boat trailer.
• UV-coated harness jackets protect the wiring from sun exposure on a trailer parked outdoors.
• The lights are DOT FMVSS 108 compliant, which covers road legality for the stop, tail and turn functions.

Cons:

• The submersible claim has no IP rating attached, so the seal level is less clear than on the IP68 kits further down.
• The 90-day warranty is much shorter than the two years offered with the Nilight kit.
• The trailer width it covers is not specified, so wide trailers need extra checking.

Best for: An owner stripping a boat trailer back to bare frame who wants lamps, markers and harness in one purchase.

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What sets the MAXXHAUL 70205 apart is how much of the job it covers. Most entries here sell lights alone, like the Partsam Square IP68 Lights. This one adds the amber clearance lamps, the plate bracket and a harness long enough for most single-axle boat trailers. The shipping weight of 2.6 lb reflects all that hardware.

For a rewire, the color-coded split Y harness is the practical advantage. It reduces the guesswork at the tongue and the axle, and the UV-coated jackets suit a trailer that sits in the sun between trips. The all-LED construction also draws far less current than incandescent bulbs, which matters when the tow vehicle's wiring is already marginal.

It is the wrong choice if you want a declared IP68 seal on paper or a longer warranty. In that case the Nilight Square IP68 Kit gives a 25 ft harness, IP68 rating and a two-year warranty. If your wiring is already sound and you only need two lamps, the Partsam Square IP68 Lights avoid paying for hardware you will not use.

2. Partsam Square IP68 Lights: Best IP68 Square LED Trailer Lights for Existing Wiring

• Waterproof Rating: IP68, DOT compliant
• LED Count: 15 diodes (curb side), 19 diodes (street side)
• Functions: 6 on the passenger side, 7 on the driver side including license illumination
• Included: 2 lights, 2 gaskets, 4 screws (no wire harness)
• Warranty: 1 year

Pros:

• The street-side light carries 19 diodes and a white license illuminator, giving seven functions in one housing.
• The curb-side light packs 15 diodes and six functions, including side marker and reflex reflectors.
• Gaskets and screws come in the box, so a like-for-like swap onto existing mounts is straightforward.
• It also comes in Clear and Black versions, which suits owners who want a blacked-out look.

Cons:

• No wire harness is included, so a rewire needs a separate harness.
• Durability is the open question: some units have let moisture in within weeks of use.
• The wires exit directly out of the back of the housing, which limits routing options.

Best for: A boater with a working harness who wants IP68-rated square lamps that bolt onto the existing mount.

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The Partsam pair is the clearest example of a lights-only purchase. The IP68 rating and the sealed acrylic lens are stated plainly, and the two housings are not identical: the driver side adds a license illuminator with four white diodes, while the curb side stays red only. That asymmetry means you must install left and right correctly.

Its diode count is a real selling point. At 15 and 19 diodes, each light is a dense array for a square housing, and the blacked-out look is easy to blend with a dark trailer. Compared with the CZC AUTO Left and Right Tail Lights, the Partsam units are better described on waterproof rating, but the CZC pair ships with attached copper leads.

Skip it if you are rewiring from scratch, since the MAXXHAUL 70205 LED Kit or the Nilight Square IP68 Kit includes the harness. Skip it too if you will submerge the trailer deeply and often until you are sure of the seal on your particular unit, since moisture ingress is the main complaint.

3. CZC AUTO Left and Right Tail Lights: Best Smoke-Lens Submersible Tail Lights for Quick Swaps

• Functions: Stop, turn, tail, rear reflector, side reflector, side marker; license light on the left unit
• Seal: Sonic welded, glued at wire entry points and lens edge
• Wiring: 18 gauge pure copper leads
• Lens: Smoke, plastic
• Warranty: 12 months, plus 30-day money-back

Pros:

• Six functions per side, plus a license plate light on the left, cover everything a trailer under 80 inches needs.
• Sonic welding plus glue at the wire entry holes and lens edge addresses the most common leak points.
• Two mounting options, on the back or the side of the trailer, suit different frame layouts.
• The smoke lens gives a darker look than a standard red housing while remaining DOT compliant.

Cons:

• Mounting bolts have not threaded cleanly on some units, so test-fit before installing.
• Durability is inconsistent, with a few units failing early.
• It has no backup lamp, so it will not replace a reverse light.

Best for: An owner replacing an old pair on a trailer under 80 inches who wants a dark lens and flexible mounting.

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The CZC AUTO Left and Right Tail Lights earn their spot by being easy to fit. The two mounting orientations are rare in this list: the Partsam Square IP68 Lights mount one way, and the oval RUNHWEE 6-inch Oval relies on pre-drilled surface holes. The attached 18 gauge leads mean you wire straight to the trailer connector without buying a harness, provided your existing wiring can be matched.

The sealing method is specific. Every gap, including wire entrances and the lens edge, is glued after sonic welding, which is the right approach for submerged use. Even so, the housing's plastic bolts are the weak link, and checking thread fit before launch day is sensible.

If you want a stated IP68 rating, the CZC AUTO Low Profile Rectangular pair from the same brand states it. If you want a full kit, the CZC AUTO 7-Function Wiring Kit adds a complete harness.

4. CZC AUTO 7-Function Wiring Kit: Best Wired 7-Function LED Trailer Lights for Boat and Jet Ski Trailers

• Functions: Stop, turn, tail, rear reflector, side reflector, side marker, license plate light
• Wiring: 18 gauge 100% pure copper harness
• Seal: Sonic welded, marine grade glue at wire entries and lens edge
• Compliance: DOT FMVSS108
• Fit: Trailers under 80 inches

Pros:

• Seven functions cover every lighting need on a standard boat or jet ski trailer.
• The pure copper 18 gauge harness resists corrosion better than copper-coated aluminum.
• Marine grade glue seals the wire entry points and the lens edge.
• A 30-day money-back window and 12-month warranty back the purchase.

Cons:

• The harness length is not specified, so measure your trailer before ordering.
• There is no stated IP rating, only "submersible" wording.
• The lenses are plastic, which can scratch with ramp use.

Best for: A jet ski or small boat trailer owner who wants lamps and a copper harness without mixing parts.

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The CZC AUTO 7-Function Wiring Kit sits between the lights-only CZC AUTO Left and Right Tail Lights and the fuller MAXXHAUL 70205 LED Kit. It supplies the harness but not the amber clearance lights, so a trailer that needs side markers will need extras.

Its edge is conductor quality. Pure copper wiring holds up better in salt exposure than cheaper alternatives, and the marine grade glue pairs with the sonic welding. The weak point is the missing harness length, since a long trailer might need an extension.

For wider trailers, use the LINKITOM Over 80-Inch Kit or the Wellmax Low Profile Rectangular, which both state fit beyond 80 inches.

5. CZC AUTO Low Profile Rectangular: Best Low Profile Rectangular LED Trailer Lights for Wider Trailers

• Waterproof Rating: IP68
• Functions: Stop, running, turn signal, license plate illumination
• Lens: Polycarbonate, smoke
• Included: 2 lights, mounting hardware, installation instructions
• Power: 12V, 3 watts

Pros:

• The IP68 rating is stated, and the housing is sonic welded with glued gaps.
• It is marketed for towing trailers both under and over 80 inches wide.
• Polycarbonate lenses resist impact better than basic plastic.
• 18 gauge pure copper wires suit underwater use.

Cons:

• No harness is included, only mounting hardware.
• It has no side marker or clearance lights, so wide trailers need those separately.
• Size dimensions are not listed.

Best for: A trailer owner who wants a slim, IP68 rectangular pair and already has the wiring.

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The CZC AUTO Low Profile Rectangular is the better-documented sibling of the CZC AUTO Left and Right Tail Lights, because it states IP68 and uses a polycarbonate lens. Its low profile suits tight fenders and fits trailers on either side of the 80-inch line.

Because it lacks marker lights, it falls short of a full over-80 setup. The LINKITOM Over 80-Inch Kit includes clearance lamps and a harness for that situation.

6. Wellmax Low Profile Rectangular: Best Acrylic-Lens Rectangular LED Trailer Lights for Replacement Pairs

• Lens: Sealed acrylic, red
• Hardware: Stainless steel, corrosion resistant materials
• Compliance: DOT FMVSS108
• Fit: Up to and over 80 inches wide
• Dimensions: 9 x 6.5 x 3 inches

Pros:

• The sealed acrylic lens blocks water from the circuit.
• Stainless steel hardware is included for fastening.
• The fit is exact on many standard trailers, so swaps are simple.
• The brand is a US family business operating since 1994.

Cons:

• The plastic mounting has broken for some owners after about two months.
• No IP rating is stated.
• It has no license light, clearance lights or harness listed.

Best for: An owner replacing a worn pair on a standard trailer who values easy installation.

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The Wellmax Low Profile Rectangular pair is easy to install and bright, with a clean look that makes an older trailer appear newer. Its flexible sizing claim is useful when your trailer sits close to the 80-inch limit.

Mounting durability is the concern. If your launch ramp is rough, the CZC AUTO Low Profile Rectangular with a stated IP68 rating and polycarbonate lens is the safer choice. If you need a complete kit, choose the Nilight Square IP68 Kit instead.

7. LINKITOM Under 80-Inch Kit: Best Welded-Housing LED Trailer Light Kit for Trailers Under 80 Inches

• Waterproof Rating: IP68, welded housing with no lens screws
• Contents: Two stop/turn lights, two amber clearance lights, license plate bracket
• Harness: 22 ft main plus 4 ft section, split Y color-coded
• Lens: ABS, red, DOT compliant
• Extras: 4 reflective stickers

Pros:

• The lamp shade has no screws and is welded shut, removing a common leak path.
• Two amber clearance lights and a license bracket complete the kit.
• The 22 ft and 4 ft harness sections cover most boat trailers.
• Four reflective stickers add extra rear visibility.

Cons:

• The warranty length is not listed.
• The ABS lens is plastic and can scuff.
• It fits trailers under 80 inches only.

Best for: An owner of a narrow boat trailer who wants an IP68 welded kit with markers.

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The LINKITOM Under 80-Inch Kit is the closest rival to the MAXXHAUL 70205 LED Kit, and it adds a stated IP68 rating and a second 4 ft harness section. That extra length helps when the rear of the trailer needs a branch.

Compared with the Nilight Square IP68 Kit, it lacks a stated warranty and a drainage feature. If you want those, the Nilight is the better pick, while the LINKITOM Over 80-Inch Kit is the choice for wide trailers.

8. LINKITOM Over 80-Inch Kit: Best Drain-Hole LED Trailer Light Kit for Trailers Over 80 Inches

• Waterproof Rating: IP68, welded housing with a drain hole
• Contents: Two stop/turn tail lights, two amber clearance lights, license plate bracket
• Harness: 22 ft plus 4 ft, split Y color-coded
• Lens: Corrosion resistant ABS, red lens
• Install note: Mount with the drain hole facing down

Pros:

• The drain hole lets trapped water escape rather than sitting on the circuit board.
• It is sold for trailers wider than 80 inches and includes clearance lamps.
• The kit bolts on without modification on many trailers.
• The corrosion resistant ABS shade suits repeated launching.

Cons:

• The included blue splice connectors are not waterproof and can corrode within a year.
• Mounting hardware is sensitive to over-tightening.
• Left and right brake light sides are easy to mix up, so check the markings.

Best for: An owner of a wider boat trailer who accepts upgrading the splice connectors.

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The LINKITOM Over 80-Inch Kit is the only wide-trailer kit here with both clearance lights and a drain hole. Its usage notes still repeat the 80-inch figure, so confirm your trailer's width and marker requirements before relying on it.

The connectors are the lesson. Use heat-shrink butt connectors or epoxy-dipped splices and the kit will last longer than with the supplied blue ones. If you want a narrower trailer's equivalent, choose the LINKITOM Under 80-Inch Kit, and if you want a longer warranty, choose the Nilight Square IP68 Kit.

9. Nilight Square IP68 Kit: Best Square IP68 LED Trailer Light Kit with Side Markers for DIY Rewires

• Waterproof Rating: IP68 with housing drainage
• Functions: Stop, turn, tail, side marker, side reflector, rear reflector, license light
• Harness: 25 ft, color-coded
• Fit: 12V DC trailers up to 80 inches wide
• Warranty: 2 years

Pros:

• The 25 ft harness is the longest in the list.
• The IP68 housing includes drainage for added protection.
• Stainless steel hardware, an amber clearance light and a plate bracket are included.
• A two-year warranty is the best coverage among the kits.

Cons:

• The plastic housing is not metal.
• Instructions could be clearer on part placement.
• Some kits have shipped with too little mounting hardware.

Best for: A DIY owner of a trailer up to 80 inches who dunks it at the ramp and wants the longest warranty.

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The Nilight Square IP68 Kit matches the MAXXHAUL 70205 LED Kit on contents and beats it on harness length, rating and warranty. The lights draw very little power yet remain bright enough to be noticed.

Intermittent flicker is usually a ground problem, not a light failure. Bolt the white wire to clean bare metal on the frame. A Halo Glow version of the kit is also available.

It is not for wide trailers, where the LINKITOM Over 80-Inch Kit is the better fit.

10. RUNHWEE 6-inch Oval: Best 6-Inch Oval LED Trailer Lights for Marker-Heavy Setups

• Waterproof Rating: IP67
• Shape and Size: 6-inch oval, 6.6 x 2.5 x 1.8 inch mounting footprint
• LEDs: 10 high-brightness LEDs per light
• Lifespan: 50,000+ hours
• Warranty: 2 years

Pros:

• Ten LEDs per light deliver even illumination.
• Pre-drilled surface-mount holes make replacement simple.
• A 50,000+ hour lifespan reduces long-term maintenance.
• A two-year warranty is a solid backstop.

Cons:

• IP67 is a lower immersion rating than the IP68 kits.
• No harness or license light is included.
• Wattage and trailer width are not listed.

Best for: A trailer owner who needs oval lamps for occasional wet use and does not launch deeply.

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The RUNHWEE 6-inch Oval is a standard waterproof light rather than a submersible one. It resists rain, dust and spray, but repeated deep immersion is where IP68 units like the Nilight Square IP68 Kit have the advantage.

Choose it for a utility trailer or marker-heavy setup that sees splash rather than submersion. For ramp launches, the Partsam Square IP68 Lights or LINKITOM Under 80-Inch Kit are better matches.

Buyer's Guide: How to Choose the Right Waterproof LED Boat Trailer Light

The core trade-off is between a bare pair of lamps and a full kit. A pair is cheaper to replace and simpler when your wiring is sound, while a kit adds a harness and markers but only pays off on a rewire. Seal quality matters more than brightness, because every LED on the list is bright enough when it works.

Before choosing, check these project details:

• Trailer width: Anything over 80 inches needs clearance lights, so pick a kit that includes them.
• Existing wiring: If the harness is corroded, choose a kit such as the MAXXHAUL 70205 LED Kit.
• Launch frequency: Frequent dunking calls for a stated IP68 rating.
• Mounting space: Measure the existing holes and fender room before ordering.
• Warranty: Coverage ranges from 90 days to two years across the list.

Waterproof Rating and Sealing

IP68 is the standard for submersion, and it is stated for the Partsam Square IP68 Lights, CZC AUTO Low Profile Rectangular, LINKITOM kits and Nilight Square IP68 Kit. IP67 on the RUNHWEE 6-inch Oval covers temporary immersion only, so it suits splash exposure better than repeated dunking. The MAXXHAUL 70205 LED Kit and Wellmax Low Profile Rectangular describe themselves as submersible without a rating.

Sealing method matters as much as the rating. Welded housings with no lens screws, as on the LINKITOM kits, remove leak paths, and drain holes on the LINKITOM Over 80-Inch Kit and Nilight kit let water escape. Boat owners who are already thinking about corrosion, for instance when fitting a Bluetooth marine stereo, should apply the same thinking to every connector on the trailer.

Kit Contents and Wiring

Kits like the MAXXHAUL 70205, LINKITOM pair and Nilight bundle harnesses, clearance lights and plate brackets. The Partsam, Wellmax and CZC AUTO rectangular pairs leave the wiring to you. Harness length varies from 22 ft on the MAXXHAUL to 25 ft on the Nilight.

Trailer lights draw little current, far less than a 12 volt heater for UTV or similar accessory, so 18 gauge copper is adequate. The weak points are connections, not wire thickness. Seal every splice with heat-shrink or epoxy.

Trailer Width and Function Count

Under 80 inches, a pair of tail lights with a license lamp is enough, which is what the CZC AUTO Left and Right Tail Lights offer. Over 80 inches, add amber clearance lights, as in the LINKITOM Over 80-Inch Kit. Function count ranges from four on the CZC AUTO Low Profile Rectangular to seven on the Nilight and CZC AUTO wiring kit.

Check your local regulations on side markers and reflectors. The Partsam and CZC AUTO tail lights build side markers into the housing, which saves separate parts.

Lens Material and Mounting

Acrylic on the Wellmax resists yellowing, polycarbonate on the CZC AUTO rectangular and Nilight resists impact, and ABS on the LINKITOM kits resists corrosion. Plastic mounting parts are a recurring weak point, so use the supplied stainless hardware without over-tightening.

LED longevity is the same reasoning behind exterior LED soffit lights on a house: no filament to break and low draw over many hours. On a trailer, that means the housing, not the diode, is what usually fails first.

Frequently Asked Questions About Waterproof LED Boat Trailer Lights

Are Submersible Trailer Lights Safe to Dunk in Salt Water?

Yes, if they carry a stated IP68 rating and welded or glued seams, as on the Nilight Square IP68 Kit and LINKITOM kits. Salt water attacks connectors and grounds faster than the lights themselves. Rinse the trailer after launching and keep the ground wire bolted to clean bare metal.

What Is the Difference Between IP67 and IP68 Trailer Lights?

IP67 covers temporary immersion, while IP68 is rated for continuous submersion at a stated depth. The RUNHWEE 6-inch Oval is IP67, and the Partsam Square IP68 Lights are IP68. For repeated ramp launches, IP68 is the safer rating.

Do I Need Clearance Lights on a Boat Trailer?

Trailers over 80 inches wide generally need amber clearance lights, and the LINKITOM Over 80-Inch Kit includes them. Narrower trailers can usually run on tail lights with side markers built in, like the CZC AUTO Left and Right Tail Lights. Check your local rules before relying on this.

Can I Replace Just the Lights Without Rewiring?

Yes, if the harness is intact. The Partsam Square IP68 Lights and Wellmax Low Profile Rectangular are sold as pairs without a full harness. Test the existing wiring first, since corroded wires will make new LEDs flicker.

Why Do My New LED Trailer Lights Flicker?

Flicker is usually a poor ground, not a faulty light. Bolt the white ground wire to clean bare metal on the frame, as recommended with the Nilight Square IP68 Kit. Check for corroded splices if the problem continues.

Which Kit Is Best for a Jet Ski Trailer?

The CZC AUTO 7-Function Wiring Kit is aimed at jet ski and small boat trailers under 80 inches. It supplies seven functions and a pure copper harness. The MAXXHAUL 70205 LED Kit is a good alternative if you also want clearance lights.

Final Verdict: Which Waterproof LED Boat Trailer Light Should You Buy?

Best Waterproof LED Boat Trailer Lights for most boaters start with MAXXHAUL 70205 LED Kit: a 12V all-LED set with two amber clearance lights, a license plate bracket and a 22 ft color-coded harness with UV-coated jackets. It is DOT FMVSS 108 compliant and covers a full rewire in one purchase. Its main weakness is that the submersible claim carries no IP rating and the warranty is only 90 days.

For alternatives by use case, the Nilight Square IP68 Kit adds a 25 ft harness, drainage and a two-year warranty for trailers up to 80 inches. The LINKITOM Under 80-Inch Kit offers a welded IP68 housing with a 22 ft plus 4 ft harness, and the LINKITOM Over 80-Inch Kit adds a drain hole for wider trailers. The Partsam Square IP68 Lights suit owners with working wiring who want a stated IP68 seal.

The specialist picks fill narrower roles. The CZC AUTO Left and Right Tail Lights and CZC AUTO Low Profile Rectangular suit quick swaps, the CZC AUTO 7-Function Wiring Kit suits jet ski trailers, the Wellmax Low Profile Rectangular suits simple replacements, and the RUNHWEE 6-inch Oval suits splash-only use. If you are still undecided, pick a full kit with a stated IP68 rating and replace the supplied splice connectors with sealed ones.