Our glass radiator is infrared radiation. They are made of double-faced toughened safe glasses with fairly smooth edge, error less than 0.5mm, no covering frame. We adopt high-tech heating films as the heating elements, product thickness being only 11mm. Those are all the most advanced techniques in glass processing. Automatically power off when tilted or fallen down Cozy Infrared heating, soundless Output Power: 280W Glass Size: 1040*460*11mm Glass figures and patterns optional What can decorate and warm your home more appropriately than this. 5pc/carton Different models in standard lot size.