I bought these to replace the lights on my boat trailer. I didn't rate the water resistance as this feature takes time to degrade. About 18 months ago I bought a similar set of lights for my boat trailer. They only lasted about 18 months. I hope these last longer. My trailer is used 4-5 times a week so they always get wet. I've attached a picture of the fit. They don't quite fit in the small Magic Tilt Jet Ski Trailer, but they mount and work. They also come with a nice license plate bracket which I installed but didn't mount my license plate due to ground clearance issues. Overall a decent quality product, good instructions etc. I gave it 4 stars for ease of installation simply because running wires through a trailer always hurts no matter what lights you buy.
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