Non-Integrated CFL- Requires ballasted fixture.65-Watt lamp is equivalent to 300 watts incandescent, for energy savings.4U style lamp with Mog UL socket base.Produces 3800-lumens, 6300K daylight color temperature rating.Fits Designers Edge light fixture models, L1755, L1756, L1767.Non-Integrated CFL- Requires ballasted fixture.4U style lamp with Mog UL socket base.