Deluxe Heat Mat 20W. These heat mats builds in intelligent temperature control clip. It I safety and constant in temperature. When internal temperature exceeds 48 degree C, it will be power off automatically. Scientific design make the surface temperature maintained at 38 +/- 5 degree C to effectiveley resist coldness and low temperature. the technology of ultrasonic sealing is used. the neat and fine mouth may reach IPX7 in waterproof coefficient. the product has passed the rigorous european CE certification. 4 kinds of different wattages and sizes may be selected. it may be different in cold zone and heating zone. the heating area should be less than 2/3 of feeding area. it may be selected according to the actual conditions. each heating pad shoud use the PVC material conforming to european environmental protection standard. it may be marketed after passing the rigorous detection for 72 hours. the comprehensive protection to your pests makes you feel at ease. suitable to various pets. produce natural heat and warm your pets. installed at the bottom of reptile terrariums. effectievely improve appetitie and promote metabolism. build in 48 degree celcius temperaure control chip to be safe and constant temperature. as for the reptile amphibious pets and small pets, it may be adjsut the body temperature, simulate appetitie and promote metabolism and digestion.