Thumb Score: +1

1.Emitter: 4* high quality LED
2.Operating voltage: 3.0V-4.2V
3.Beam Angle: Narrow beam 32°; Flood beam 86°
4.Battery options: 1x 21700 Li-ion Battery
5.Dimension: 122mm (length) x 35mm (head diameter)
6.Weight: 108g / 0.24lb(excluded battery)
7.Reflector: TIR lens
8.Circuit Type: Boost constant current driver
9.Reverse charging function: Yes
10.Flashlight body: Aerospace grade 6061 grade aluminum alloy
11.Water resistance i.a.w. IPX8
12.Reverse polarity protection to protect against improper battery installation.