Anyone wanting a moon light and not wanting to do any work will love this. I bought a blue LED night light with a photo cell, and an 6' extention cord. I removed the clear reflector from the night light and turned it upside down so that it shines down into the tank. I works great for the price. Does have a little bit of the spot light effect, but for the money I am not dissapointed. Plus it turns itself off when the main light comes on. If anyone chimes in wanting a night picture I can get one.