1) Use 3 x CREE XM-L T6 LED light, brightness max 2000lm, life of 100,000 hours

2) Switch Type: Slight-contact

3) Switch Location: Side-way

4) 3 Mode: Mode Arrangement: High > Low > Strobe (Press switch for 3 seconds to adjust to Strobe)

5) Lens: Coated Glass Lens

6) Reflector: Aluminum Smooth/SMO Reflector

7) Use 4 x 18650 batteries with protected circuit board, use time about 60 minutes

8) Comes with lanyard and extra O-ring

9) Size: 135 x 60mm