Review on LOFTEK Submersible LED Lights With Remote RF(164Ft),Full Waterproof Pool Lights For Inground Pool With Magnets, Suction Cups,3.35” Color Changing Underwater Lights For Ponds Battery Operated (4 Packs) by Craig Kumar

The first set I got was broken (piece that holds the suction cup was loose), but they were replaced immediately. So far, the brightness seems pretty good. We are using them for an in-ground pool that has no light. I think well want four total, but I want to ensure these last before ordering a second pair. The 'waterproofness' seems very good, however, and we've used them a week with no issues (we take them out when we are done). The only disappointment is the suction power. We have a plaster pool, so I was dubious about them sticking. They will, but if there is any playing in the pool (and, of course, there is playing in the pool!), the dislodge pretty easily. So we just set them on the bottom. I would say if the suction cups were 50% bigger, they'd actually affix quite well. For the money, however, and with rechargeable batteries, I think they're worth the money.