... 2.Rated voltage: 24 to 240V 3.Customized PTC heating elements for Fan Heater,PTC heater: Key Specifications/Special Features:PTC ... temperature control and power savingIt depends on PTC elements as its heating resources, and corrugated plate made of aluminum alloy ... conditioners, drier, dryer, warm air generator, and air-conditioner for both warm, and cold temperature, automobilesThey have be awarded ...