This ceramic heat emitter bulb is the perfect 24 hour heat source for all reptiles. These porcelain heating devices screw into a standard porcelain incandescent socket, giving off intense muscle-penetrating infrared heat while emitting no light. The flat-faced design is more efficient and longer lasting than conical designs which build up excess heat internally ultimately carbonizing the element. Features Material: Ceramic + Alloy Color: Black Diameter of heating surface: 6cm Wattage: 20W/60W/100W Voltage: 110V/220V Heating source: Ceramic, infrared, electrical, no light emitted Tolerates high temperatures from reptile heat or light bulbs For Tough ceramic sockets won't break down in heat stress The black exterior finish is powder coated and fired for added luster and long life The bulb is made from glass containing rare earth black phosphors, which simulates the moons natural glow for nocturnal viewing without disturbing the reptile's day/night cycle. Package Contents 1 x Heat Emitter Bulb Note: Surface temperature is too high, do not directly touch during use.