Ceramic heaters emit infra red heat waves with no visible light. The heat is a deep heat that penetrates muscle tissue. They have very high surface temperatures so must always be guarded and controlled by a thermostat.
Very effective heaters for medium to larger cages with higher temperature requirments.
Precautions. Ceramic heaters operate at very high surface temperatures so caution should be
exercised. Guard the heater from direct contact by both you and your animals. Use a heater of the
correct wattage for the size of cage and the temperature required. A pulse proportional
thermostat is the recommended controller for this heater.