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 cycleNote: the surface temperature of the ceramic lamp is generally high, please keep an appropriate distance from flammable materials and pet. Infrared heat penetrates the scales and skin tissue, promoting health and healing as it widens the blood vessels and increases blood circulation. The ceramic heat lamp emits infrared heat energy and keep animals warm. Infrared heat penetrates the scales and skin tissue, promoting health and healing as it widens the blood vessels and increases blood circulation. Specification: voltage: AC 110-120V power: 50W,2Pack material: ceramic. No light emitted: bulb does not emit any visually detectable light that can disturb the sleep cycle of your pets. To avoid scald, please wait at least 1 hour to cool down after turn off the bulb.