with a rechargeable battery,
the power is 3w

when the distance between the head light and the object is 1metre, the facula diametre can adjust between 40mm and 150mm.

Specification:
1 LED bulb power: 3w
2 Colour temperature: 6000k
3 the facular can adjust at the 250mm, ranging from 6mm to 65mm
4 the brightness at the 250mm: 9500lux
5 weight of the light head: 68g
6 with a rechargeable battery, can charge for 500 times
7 after full charged, it can last for: 10 hours
8 the life of the bulb: 20,000 hours
9 it is comfortable for wearing, more dapper, it can adjust the size
10 packing size: 26��16.5��15.5�M
11 weight: 0.65kg net weight: 0.40kg