quartz heating element the high rate of radiation, radiation, high temperature, well integrated, high-intensity insulation quartz heating elementProduct mix and trait1.Radiation quartz electric ... : 300-1000W 325W,400W,500W,650W Heating :within one minitueSurface temperature: 100-460ZXW 500-580high temperature modification700-1100Spectral region: 2.5-6um Spectrum ...