The Features of the Gun-type Curing Light (DY-800): 1. The light intensity can reach 900-1000mW/cm2. The depth of the polymerization of resin material can reach 3.5 mm. 2. Three Preset Programs a. Fast mode: Full power all the time b. Soft 1 mode: Generally increasing power in first seconds, then full power till the end. c. Soft 2 mode: Generally increasing power in first seconds, then half power till the end. 3．Easy operating with LCD panel-what you see, what you get. 4．High Output: curing for 10 seconds can reach the depth of 3.5mm. Full supply of power can satisfy 10-second curing time for 200 times. 5．Various Curing Time: five preset curing time 5/ 10 /20 /30/40 seconds. Except for Fast mode, the curing time for other modes will be started from 10 seconds. 6. Build-in Radiometer The dentists can adjust the curing time refer to the reading of the radiometer. The reading is settled by the number of the lighting-up LED indicator. 7. Automatic Memory The unit will automatically keep the latest setting for next operation, including the curing time and the program. 8. Sleeping Mode When the unit is no longer in using for 10 minutes, the hand piece will turn into sleeping mode to save power. SPECIFICATION 1. Switching Power Adapter Input: AC100-240V,50/60Hz Output: DC 5v, 2.4A Operating power: 1.5 w MAX 2. LED Model: DY-800 Wavelength: 450-470nm 3. Battery Type: Li-ion Voltage: DC 3.7v Capacity: 2000mAH Operating time: Avg, 36min with fully charged battery Charging time: Appvox. 4 hrs (New battery for 8 hours) 4. guarantee time: one year