What kind of nightlight is battery
Outdoor solar charging in general, the use of home are generally 220V AC charging, automatic control circuit, you can automatically shut down during the day and charge, automatically lit at night.
LED rechargeable batteries are Nightlight, commonly used with solar charging and 220V AC charging two.
The purchase should pay attention to the difference of emergency light, emergency light is in the alternating current power will automatically light up, the light is not normal.