"The Repti them U.T.H. heater is designed to economically heat reptile, amphibian, small animal and plant terrariums. Ideal ""under tank"" type heater for heating reptile, amphibian, small animal, or plant terrariums. Safe & accurate nichrome heating element. Full 1 year warranty Can be used in conjunction with zoo med's ceramic heat emitter when additional heat is needed for high temperature species. Laboratory tested and approved Detailed 8-page instruction book enclosed."