Model:multifunction underwater photographing Light
Reflector: no hotspot design, no reflector
Lens: 6mm Polycarbonate Board.
Body material:Durable aircraft-grade aluminum.
Angle of light beam:120°
Surface treatment: Premium Type III hard-anodizing.
Battery:4x18650 Li- ion 3.7V battery(not include)
With battery over-discharging protection, polarity reversing protection
Operation voltage:2.8V to 4.5V.
Waterproof:100 meters underwater
Dimensions:122mm (length)*50mm (dia. of body)*65mm (dia. of head).
Note:This is a diving Flashlight and very high power torch,so don't use it for long time on land