Three brightness levels, high> low>strobe
Reflector: Glossy aluminum reflector
Lens: 8mm polycarbonate board.
Body material: Durable aircraft-grade aluminum.
Angle of light beam 5.5° Hot spot, 110° Periphery
Surface treatment: Premium type iii hard-anodizing.
Battery: 26650 li-ion battery *2
Battery over-discharging protection, polarity reversing protection
Operation voltage: 6v to 8.4v.
Waterproof: 100 meters underwater
Size: 236 (length)*33.5 (dia. Of end) *60mm (dia. Of head)
Underwater Weight: 325 grams (w/o batteries).
Weight in air: 610g(with battery)
Operation temperature: -25degree-60degree
Impact resistance: 1.5 m.
Operation instruction: short press the button switch to cycle through high, low, strobe
Professional Diving flashlight, diving depth up to 100 meters