battery backup e27 9w led emergency bulb light kit 

Operating Instructions
Remove the lamp from the box packaging and place the lamp into the light fitting.
Finger touch the bottom, it will light up in the dark
Normal Operation
The lamp will now operate as a normal household lamp and can be turned on/off using the light switch. The internal Li-Ion battery will charge whenever the light switch is set to ON.
The lamp needs to be charged for 5-6 hours in order for it to last the entire 3 hours during a power failure.
Power Failure Operation
During a power failure the lamp will operate as an emergency lamp and switch on automatically as long as the light switch is set to ON.
If the light switch is OFF the user must turn on the lamp using the light switch if light is required.
During a power failure the lamp will last for 3 hours and can be turned on and off using the light switch.
When power has been restored the lamp will operate as a normal household lamp and the internal Li-Ion battery will charge whenever the light switch is set to ON.

LED Emergency Light  Specifications: 4W E27 Rechargeable LED Emergency Light Emergency Led Lamp