The Zilla® Black Reflector Dome incandescent light fixtures are designed to deliver years of heat or light to reptile terrariums. Each is topped with a ceramic socket to withstand constant heat of bulbs up to 150 watts. The black exterior and reflective white interior finishes are powder-coated for added luster and long life. 6 ft. power cord with an in-line on/off switch is positioned near the fixture for easy use. Spring clips, to hold dome securely on screen top, are included. The premium dome is powder-coated black on the outside and reflective white on the inside for added luster and long life 5.5" size fits up to 60 watt bulbs 8.5" size fits a wide varitey of incandescent, fluorescent and ceramic heat emitting bulbs Topped with a ceramic socket that lasts under high heat 6-foot power cord with an in-line on/off switch A spring clip that holds the dome securly in place on screen enclosure tops is included 1 year warranty from manufacturer