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LED: CREE XML LED chips
Light mode: High Power-Middle Power-Strobe- Strobe
Battery: 3pcs C Battery
Working voltage: DC4.2V
Size: 44.5mm* 227mm
Run time: 12h
It appears to have a beam angle of about 10-11 degrees, it is the spotlight variety, not a flood.
The light is nice and bright, although it's definitely a spot light.
Great during day dives looking deep into holes for lobster and octopus (found quite a few).
People took it through deep, dark, long swim-throughs- it was excellent. And, did some night diving with it as well. It was brighter than anyone else's lights.
The diving flashlight has a substantial and solid feel. Solid metal. feels great in your hand.