... soft(1) Material : Filament -- Carbon Fiber(2) Type: A. Transparent Carbon Heating element B. Frosted Carbon Heating element (3) Voltage: 100 ... :10000hrs (7) Shape:U-shaped, Pear, Round, Ω-shaped, C-shaped, Linear Tube (8)Feature: Far infrared, long lifetime, ... environment.(9) Application: Heaters, Heating Appliance, heating device for restaurant, cafe places, ports hall ,warehouses etc, industury ...