-No Light Emitted:Ceramic heat light bulb does not emit any visually detectable light that, Emits a natural sun-like infrared heat. Neither interfere with the animal's natural rest, it will not interfere with people. -Features: This emitting heater provides 24hours constant heats for reptile's environment. -Specification - This mini infrared heat lamp is made of solid ceramics element,it has a perfect heat radiation feature.The voltage is AC 110V, power is 25/100-Watts, full size is diameter 2.37 inch x height 2.76 inch. -Solid ceramics element has a good heat radiation feature, which can works long life, rated for up to 10,000 hours.These reptile heat bulb can use in standard E26 lamp base and easy to install. -Warm Tips:This bulb‘s surface temperature is very high when working, please do not use your hand to test the temperature.To avoid scald, please wait at least 1 hour of cooling after turning off.