Zilla Terrarium Small Heat Mat has carbon fiber heating technology efficiently radiates infrared waves creating uniform heating with no hot spots. Carbon fiber is an energy-efficient method for heating with no wires that might become pinched or broken. Each unit has adhesive backing and is low voltage with an internal shut-off switch for safety. Features: Ideal heat source for desert and tropical reptiles Uniform heating, no hot spots and energy-efficient Easy-to-use adhesive mounting either underneath or on the side of the terrarium Helps reptiles regulate body temperature needed for overall health