... heating elements It uses metal and far-infrared radiation milky white quartz tube, ultra-high-quality insuranc ceramic part for heating ... rating: 380V,220V,110V,55V(standard voltage: 220V)Heating power: 300-1000W 325W,400W,500W,650W Heating :within one minitueSurface temperature: ... 4-8um,11-25um Interest-free model number of standard exterior size:(special requirement customizing) safety pin (General ...