... Pear, Round, Ω-shaped, C-shaped, Linear Tube (8)Feature: Far infrared, long lifetime, energy saving. different IR wave range by adjustment ... never peels off with high temperature. It has instant and fast heat delivering in seconds. It has flexibility ,economy ... a modern heating system. No emissions ,no noise, and keep a fresh air and natural environment.(9) Application: Heaters, Heating Appliance, ...