This ceramic infrared heat emitter is the ideal 24 hour “non-light emitting” heat source for all tropical and desert reptiles. C.U.L. approved for safety, this 150 watt element is suitable for high-humidity terrariums in the 30-40 gallon range, and has an average life of 25,000 hours (up to 5 years!). Keep your reptiles warm, cozy, and healthy with this powerful and efficient ceramic heat emitter.