0.2W ultra-low-power. You can put in your pocket and can also hang on a key, very portable.

Working current is more than 40mA, high luminous efficiency, energy saving. 5000mah mobile power, full of power can be lit for about 100 hours.

This is mini LED Light Ultra-thin Ultra-light Portable USB Small LED Lamp Camping Night Light.

NOTE:This USB light is very bright and will generate little heating after working for long time, it's normal. Just take care when you touch it off.