Material: Ceramic + Metal Heating source: ceramic, infrared, electric, no light emitted. SocketPorcelain socket only (E27). Input voltage: 220V-240VAC. Power (wattage): 100 watts. Diameter of the heating surface: 3.15inches (approx.). The black color. Package List: 1 x 100W Ceramic Heater Lamp (Black) 1. This 100W Black Ceramic Heat Emitting Bulb is the perfect 24 hour heat source for reptiles and amphibians, Can last 9,000 to 15,000 hours or more. 2. This infrared heating lamp does not emit light, does not disturb the normal sleep schedule (day or night). 3. Simple and easy to install: screw into a standard porcelain E27 socket. ATTENTION: 1. The surface temperature is too high when working, do not touch directly when using. 2. Please adjust the distance between the lamp and the animal. 3. Do not touch the heating lamp immediately after turning it off, wait at least 1 hour for it to cool down.< / P>