HabiStat Black Magic Ceramic Heater supersedes Pearlco ceramic heaters which are no longer manufactured. Very effective heaters for medium to larger cages with higher temperature requirements. 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 HabiStat pulse proportional thermostat is the recommended controller for this heater. Available in 60, 100, 150 and 250 Watts.