?Connected with USB， this 4W bulb can work as emergency light at home and as tent light in outdoor activity.Small and convenient， it is useful in life.

Feature:
Small size， portable， very convenient to use.
10 * 5730 SMD leds， high brightness.
Connected with USB， it can work as emergeny light.
Apply to home illumination and outdoor activity illumination.

Specifications:
Type: USB bulb
Voltage: DC 5-6V
Power: 4W
LED: 10 * SMD 5730
Color temperature: White (6000-6500K)
Luminous flux: 450LM
Bulb color: White / yellow / green / blue / red (optional)
Cable length: 100cm / 3.28ft
Item size: 6.0 * 9.0cm / 2.4 * 3.5in ( D * H )
Item weight: 46.0g / 1.6oz
Package size: 14.0 * 6.0 * 6.0cm / 5.5 * 2.4 * 2.4in ( L * W * H )
Package weight: 65.0g / 2.3oz

Package list:
1 * USB bulb