Review on Top-rated Bestgle Blue LED Submersible Aquarium Spotlights for Fish Tank, Fountain, and Pond - IP68 Waterproof Decorative Light Bulbs with 180° Rotation by Angela Johnson

Works as advertised. Some reviews indicate water leaks. My product showed no signs of this. I give four stars because I was a bit disappointed with the size of the lamp. I chose this product because it was the smallest I could find for my 6 gallon tank but was still too bulky. I'm not sure why this should be the case as there seems to be a lot of empty space inside the plastic bubble. A light that is at least half the size would do the job just fine. However, with a little ingenuity, the fixture can be optically masked out, allowing only the blue light to achieve the desired artistic effect.