Exclusive Phosphor Blend Maintains Performance Throughout Lifetime of Radiance Lamps Premium Upgrade for All Wolff System F-71 Bi-Pin 100W Non-Reflector Style Tanning Lamps and Other Compatible Brands Designed to Provide a Natural Tan Bi Pin Style Lamp Ends - Be Sure to Check Your Bed for Compatibility Compatible Replacement for Many Popular F-71 Bi-Pin 100W Lamps Lamp Life Expectancy - Up to 1200 Hours Radiance 5000 F-71 Bi-Pin 100W Bulbs 5.0 HO Tanning Lamps are one of the most popular lamps in the industry and are a premium upgrade to all Wolff System F-71 Bi Pin 100W Non-Reflector Style tanning lamps, as well as many other popular compatible brands of F71 Bi Pin tanning lamps.. Bi Pin style lamp ends - be sure to check your bed style to ensure compatibility. This lamp is designed to provide a natural looking tan and is a compatible replacement for many popular F-71 Bi Pin 100W lamps. An exclusive phosphor blend maintains the performance of the lamps throughout the lifetime of Radiance Lamps. The lamp life expectancy is up to 1200 hours of use. Radiance Lamps are the best lamp in this galaxy and beyond! DANGER! Ultraviolet Radiation. Follow instructions. Use ONLY in a fixture equipped with a timer. Eye protection must be worn. WARNING. The instructions accompanying the sunlamp product should always be followed.