The Reptile Systems Ceramic Heat Emmitters ideal for creating necessary constant warm areas in the terrarium. Supports digestion, promotes well being and activity and enables night observation of the animals without disrupting the 24 hour cycle. Only use Heat Emitter in a suitable Ceramic Lamp Holder. Can be combination with a suitable thermostat in order to regulate the heat. Made in a classic black to easily blend in to the habitat of your reptile enclosure.