... heating products. 2.It uses metal and far-infrared radiation milky white quartz tube, ultra-high-quality insurance coefficient of nickel chromium alloy resistance wire ... stability, heat evenly, Electric conversion efficiency, fast heating, thermal inertia of small, clean, easy to ... 55V(standard voltage: 220V)Heating power: 300-1000W 325W,400W,500W,650W Heating :within one minitueSurface temperature ...