1. portable 2. good quality 3. AC/DC charging function The switch is on side. 30 LED light can be operating about 25 hours continously. When unit is being charged, the indicator will be on. When the power failure, the LED light can be automatically on. Power: 220V 50HZ/60HZ Using sealed lead-acid battery. Recharge every three months, if the light is not used for a long time. Do not change in the "On Position"

30 LED emergency light