... time4. 6 pcs high power LED, fan-cooled5. 1-30 minutes adjustable timer, 3 light intensities, suitable for more brands ... tooth whitening gel6. LED screen shows all the information, ... -490MM4.Light Intensity:3 intensities,maximum>6000mW/cm25.Adjustable timer: 1m, 5m ,8m, 10m, 15m, 30m Teeth whitening LED light dental supply