Ultra long durability: 20 000 hours endless operation time. 20 time longer life span than many incandescent light bulbs. Low temperature rising: Ceramic heater makes use of infrared emission to transmit heat energy to your pets. Ceramic will not bring lots of heat to just one area. It will not generate a large hot zone near ceramic heater but will spread thruout your pets area so they can get level heat thru infrared radiation. This is the most safe and effective way to bring heat energy to your pets.