... Material : Filament -- Carbon Fiber(2) Type: A. Transparent Carbon Heating element B. Frosted Carbon Heating element (3) Voltage: 100---480V (4 ... has flexibility ,economy and energy efficiency of a modern heating system. No emissions ,no noise, and keep a fresh ... air and natural environment.(9) Application: Heaters, Heating Appliance, heating device for restaurant, cafe places, ports hall , ...