Specifically designed for high frequency electronic ballasts it has a connection at each end of the lamp, removing the need for a frame wire inside the lamp. For use with Gavita fixtures only. The jacket of a double ended lamp is made from quartz glass. Do not handle with bare hands. Oil from your hands can damage the lamp. Warranty applies only if these lamps are operated with a Gavita Pro series ballast. This DE lamp kit also includes a FREE HR96 reflector.