This Gooseneck Clamp Lamp by Zilla is a great way to deliver U.V.A and U.V.B Rays to just the right spot in your turtle or tortoises tank. You just use the large clip to attach it to the tank and bend it to where the light rays are needed most. It uses a heat-resistant ceramic bulb socket that will hold bulbs up to 150 watts. The fixture also comes with an on-off switch that is located on a 6-foot power cord for easy on and off. *Bulb not included.