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

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

3. L15xD2. 5cm

4. Weight: 180g

5. Bezel Size: 3. 3cm

6. Battery: 1*18650 Ni-Mh

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

8. Rechargeable: Independent Charging Barrel