1) high power 1w,3w white LED

2) high flux, per LED up to 30 lumens and 60 lumens

3) supply voltage source:3pcs type r03 1.5v, size AAA batteries

4) operating life up to 100,000 hours

5) continuous runtime: Approx.6hours

6) flawless white light, electronic constant current LED driver

7) cool beam, or warm white safe to the touch

8) excellent two stage switch: On/off

9) water/shock resistant

10) silver anodized aluminum body

11) portable and stylish design

12) length:110mm

13) diameter:30mm