This black 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. It will also increase the ambient air temperature in the terrarium. Infrared heat penetrates the scales and skin tissue, promoting health and healing as it widens the blood vessels and increases blood circulation. Features: Wide application: This black ceramic heat emitter bulb is the perfect 24 hour heat source for all reptiles. Operational Principle: Heating source: Ceramic, infrared, electrical, no light emitted. Solid ceramics element has a good heat radiation feature. Advantage: It will also increase the ambient air temperature in the terrarium. Infrared heat penetrates the scales and skin tissue, promoting health and healing as it widens the blood vessels and increases blood circulation. Long life: High thermal efficiency, and life expectancy up to 20,000 hours. Material: The bulb is made from high temperature clay + environmental protection glaze, which simulates the moon's natural glow for nocturnal viewing without disturbing the reptile's day/night cycle. Specification: Condition: 100% Brand New Item Type: Heating Light Bulb Material: Ceramic + Alloy Optional Colors: Yellow, Black Optional Power: 25W/50W/75W/100W/150W Voltage: 220-230V Base: E27 Size: Approx. 6 x 10cm / 2.4 x 3.9inch Weight: Approx. 157g / 5.5oz Package list: 1 x Heat Emitter Bulb Note: The surface temperature of this bulb is very high, please do not use your hand to test the temperature when working, and please adjust the distance between the hot lamp and the pet.