"The B01 is a simple & easy to use bike light. Runs on an 18650 or 21700 battery which is great if you have plenty of those" - Fstop Lights
Features
Utilizes CREE XPL-HD LED (neutral white) with 50,000 hours lifetime
Powered by one 21700 or 18650 Li-ion battery (not included)
Four useful modes plus Strobe and SOS with a max 850 lumens output
Tapered surface reflector designed with German standard, reduce the hazard of glare to oncoming people and traffics
Micro USB rechargeable with charging indicator, max charging current up to 2A
Reverse polarity protection protects from improper battery installation
One side switch operation, fast and convenient
Lock-out function to prevent accidental activations
Multifunction to serve as a bicycle light and a handheld flashlight etc
Specifications
Brightness Levels: Low (10 lumens for 88 hours), Medium (250 lumens for 5 hours 55 minutes), High (450 lumens for 2 hours 30 minutes), Turbo (850 lumens for 2 hours 20 minutes*), Strobe/SOS (@ 450 lumens)
-Brightness levels tested on 18650 battery - 21700 batteries will last longer
Intensity: 11,025 cd (Max)
Distance: 210m (Max)
Impact Resistant: 2m
Water Resistant: IP68, underwater 2m
Size: 110.2*37*25.4mm, N.W.: 101g (excluding battery)
IP68 waterproof, underwater 2 meters
Accessory: 1*Light mount, 1*Lanyard, 1* Charging cable, 1*User manual, 2* O-ring, 1*Adapter