yan color: Black

  brightness: range 100 meters

  bulb operating life: 100,000 hours (theoretical value)

voltage: 3.6-4.81v

battery: 3 no.7 batteries, need extension tube to use 18650 batteries (battery self-provided)
switch Mode: tail push switch
specification: 105mm(113)× 34mm(Max)
Net Weight: 100g (without battery)

  lighting Time: strong light for about 3 hours and weak light for more than 6 hours