Ceramic Heat Emitter for Reptiles, 2 Pack 100W Heat Lamp Bulb, E26 Ceramic Reptile Heat Bulb Black, No Light Emitting Heat Lamp for Amphibian Pet, Heat Bulb for Bearded Dragon Turtle Snake LizardNo Light EmittedThe black ceramic heat emitter, which doesn't emit light, is beneficial for nocturnal reptiles and light sensitive animals as it provides necessary warmth without disturbing their natural behaviors or biological rhythms. This heat light bulb serves as an ideal heat source while maintaining a dim or dark environment. c Heat EfficiencyThe thicker ceramic in this 100w ceramic heat bulb provides better heat retention and rapid temperature