Reflector: Aluminum alloy
Max output level: 80 lumens
Operating voltage: 0.9V - 3.0V
Battery: 1 x AAA, 1 x Rechargeable NiMh AAA, or 1 x 10440 (Due to the small light body size,10440 batteries are not recommended since it may cause the light become hot very quickly.)
Size: Length 66.5 mm *Diameter 14 mm,
Weight: 9g (excluding battery and keychain)
Tighten head to turn on, turn head counter clockwise (loosen) to turn off light. To switch modes while light is on, turn light off and on within two seconds. Light will enter default low mode after two seconds of being off.