Zilla Slimline Tropical Reptile Fixture - UV lighting fixture is compact, ultra-economical fluorescent strip lights in a modular plastic housing. This slim profile 18 1/4" x 4" x 1 3/4"H fixture mounts easily on top of a tank or can be bolted up under a counter or on a wall or cap. Has on/off switch & includes bulb. The reptile version features a 15 watt super UV reptile lamp.UL approved.