ZooMed Under Tank Heater Fits 30-40 Gal

(7 watt -Not UL Listed ) Designed to heat 10 degrees warmer than outside when using a screen cover, or 20 degrees when using glass cover. In cold elements use with rock heater.
Zoo Med Repti Therm U.T.H. Under Tank Heaters are an ideal 24 hour primary or secondary heat source for tropical or temperate reptilian species. All of Zoo Med’s Under Tank Heaters are UL/cUL approved and contain a solid state nichrome heating element. These under tank heaters permanently adhere to your terrarium, forming a solid bond for optimum heat transfer. Fits 30-40 gallon terrarium. Dimension: 8″ x 12″.
Features:
Sticks directly to your terrarium for optimum heat transfer
Optional mounting on bottom or side of terrarium
Can be used with thermostat and/or in conjunction with an additional heat source
Ranges from 4 – 24 watts, making it extremely economical to operate
Ideal for use with reptile, amphibians, small animals, or plant terrariums