ReptiSun 10.0 self ballasted compact fluorescent UVB lamp is suitable for all desert type basking reptiles. 10% UVB output helps prevent or reverse metabolic bone disease and 30% UVA increases appetite and stimulates mating in captive reptiles. Also helps prevent soft shell in captive aquatic turtles. Energy saving bulb uses only 26 watts and screws into any incandescent socket, including hoods and clamp lamps. Ideal for desert and other high UVB requirement reptiles including tortoises, monitors, bearded dragons and other agamid lizards, iguanas, tegus, uromastyx, plated lizards, etc. Shipping weight: 1/2 lb.