Features:
21 LED's, Bright.
3 modes: charge (switch to this mode when you charge the bulb), emergency (bulb will light up continuously in this mode), remote control (you can remotely turn on/off the bulb when you switch into this mode).
Screw the bulb into a bulb holder for charging.
With a Built-in long life 4V 1000mA rechargeable sealed lead-acid battery.
After fully charged, it can work anytime anywhere without limitation.
Long service life and stable performance.
Low power consumption & environmental friendly.
Power comsumption contrast of the same brightness: 2W (this LED bulb) = 9W (incandescent) = 40W (tungsten).
Wide applications: home, outdoor activities, etc.

Specifications:
LED quantity: 21 pieces
Base type: E27 standard screw-in base
Light source type: Cold light
Working voltage: AC 100-240V
Power comsumption: 3W
Charging time: Approx. 20-24 hours
Duration time: Approx. 10 hours
Lamp color: White
Remote Control Power By: 1 * CR2032 3V (Battery included)
Item size: 11x14cm (H x D)
Item weight: 195g
Package dimensions: 14.2*14.2*9.5cm
Package weight: 320g

Package include:
1 * E27 21 LED Light Bulb
1 * Remote Control
1 * CR2032 3V Battery