Incandescent includes three 120 volt, 60 watt medium base Classic Edison Style lamps. LED includes three 3.5 watt, 250 delivered lumen, 2200K or 2700K LED lamps. Incandescent version dimmable with standard incandescent dimmer. LED version dimmable with an LED compatible dimmer. Consult lamp manufacturer for more information. Suitable for damp locations.