PENN PLAX Mini White Submersible LED Light with Suction Cups

Purchased this about 3 weeks ago (early Jan), the suction cups are quite tiny and the light keeps falling off the glass. The product claims submersible and waterproof but water got into the casing regardless, and the LEDs no longer work. I'd exchange it except I can't find the receipt. Try going for the larger light from this brand instead.