1. Working voltage: 110v-220 vac,50 to 60 hz 2. The rechargeable battery capacity: 4400 mah 3. Power: greater than 1000 mw/cm squared 4. The wavelength: 450-480 nm 5. The curing time and depth: 10 s/3 mm 6. Low battery warning 7. Optional work time: 5~40 SEC. 8. High transparent glass fiber