1. Two levels of brightness adjustable, take one shot to change the brightness
2. 20 minute timer (automatically closes after 20 minutes)
3. English version 1200mAh, 18650 battery (will flash twice when connected to the charging cable)
4. Charging once takes about 2 hours,
5. Usage duration: about 9.5 hours for high gear and about 34 hours for low gear
Website：www.smartteam-hk.com