I don't have lights on my jet skis, but I have Navisafe lights on my 11' RIB tender with 25HP and I'm very pleased with them. When we cruise we anchor or using mooring balls 99% of the time so the tender gets heavy use, and when we do use it, we beat the living snot out of it
(it's a wickedly fun little boat). The lights have been flawless for 5 seasons of salt water cruising.