Not sure if they can be submerged but I use them on a general purpose motorcycle/trailer and they seem waterproof enough for that purpose. I don't think I would trust them with my boat trailer. They're not the best of the line and I'm not sure how long they will last, but for the price they seem decent.
Wellmax Trailer Utility Assembly Attachable
7 Review
Wrist watch CASIO Collection MTP-1183A-7A quartz, waterproof, silver
7 Review
π¦ PerfecTech RV 19 LED Trailer Tail Lights Red White-Amber - Integrated Turn Signal & Running Lamp for ATV Truck (12V) - Pack of 2
8 Review
π¦ Enhance Trailer Safety with Partsam Trailer Grommet Clearance Marker Lights & Lighting Accessories
6 Review
Enhanced 3Rd Brake Light For Ford F250 F350 Super Duty Trucks: LED Tail Cab Cargo Lights & Stop Light Compatible With F450 F550 And 1995-2003 Ranger Models
30 Review
09-14 Ford F150 DRL LED Tube Dual Projector Headlights - AlphaRex Base Model Jet Black With Smoke Lens
23 Review
Pack Of 2 TMH 6 Inch Oval White LED Lights For Truck Trailer With Reverse Lamp, Turn Signal, Side Marker And Tail Functions - Surface Mount, Ideal For Trailers, Buses And Vehicles, 12V DC
25 Review
Black Bezel Halogen Type LED Halo Ring Eye Lid Projector Headlights For 2006-2008 BMW E90 3 Series 4 Door Sedan
32 Review