... whitened at the same time4 6pcs high power LED, fan-cooled5 10s and 30s as a curing ... ligh,1-30minutes as a whitening accelerator6 6 light intensities,suitable for more brands tooth whitening gel7 ... 240V AC, 50/60Hz2 Light resource: 6pcs high power LED3 Wavelength: 420nm-490nm4 Light Intensity:6 intensities,maximum > ... , 15m, 20m, 30mPacking dimension:117cm*67cm*15cm Blue light teeth whitening led light