Aviation grade aluminum alloy :6N01-T6
Use USA imports CREE XPE2 R3 LED 1W 70lumen,150m beam distance, lifespan100000hour
Use 2AA batteries,5H runtime
Tail light switch
Waterproof grade IPX-4
diameter/length :27.5mm/158.3mm,76g(without battery)
Packed by Double blister