ReptiSun® 10.0 is perfect for all desert and basking reptiles! The ReptiSun® Compact Fluorescent Lamp uses a special UVB transmitting quartz glass for maximum UVB penetration. Cool burning compact fluorescent bulbs screw into standard threaded sockets, eliminating the need for a separate ballast. UVB emissions help prevent or reverse metabolic bone disease and UVA increases feeding, mating, and other natural behaviors. 10% UVB Output, 30% UVA Output, Full Spectrum. Lamp can be oriented either vertically or horizontally in your reptile hood or clamp lamp fixture. Perfect for Deep Dome Lamp Fixtures and Naturalistic Terrarium Hoods. Wattage: 26 w