1.Light output: 250/200/120/80 Lumens(optional)

2.Runtime: 4/5/8/12 hours(high/low setting)

3.L13.4xD2.2cm

4.Weight: 125g

5. Bezel Size: 2.0cm

6.Battery: 1*18650 Ni-Mh

7.Function: Variable-output, S.O.S & safety strobe

8.Rechargeable: Independent Charging Barrel