The new ReptiSun® Compact Fluorescent lamps use a special UVB
transmitting quartz glass for maximum UVB penetration. Cool
burningcompact fluorescent bulbs screw into standard threaded sockets,
eliminating the need for a separate ballast. Lamp can be oriented
eithervertically or horizontally in your reptile hood or clamp lamp
fixture. UVB emissions help prevent or reverse metabolic bone disease
and UVA increases feeding, mating, and other natural behaviors.