Road safety is a necessity with all the crazy drivers in the world today. Having your bicycle well lit provides you with the visibility required for other drivers to see you as well as allow you to clearly see the hazards on the roads. This bicycle can also be turned into a headlamp and is strong enough to survive any extreme sport that requires some extra light. The LED emitter provides up to 1200 lumens when set to maximum and has a great strobe feature. The external battery pack is 4400mAh and provides long time power for f Brand: - Model: T6 Casing: Smooth Light Head Shell made of Aviation Aluminum Alloy CNC machining anodizing surface treatment Emitter Brand/Type: CREE / XM-L Emitter BIN: T6 Color BIN: White Total Emitters: 1 Battery Configurations: Powered by a rechargeable 8.4V 4400mAh lithium-ion battery pack (4x 18650 Batteries; Battery overcharge protection) Voltage Input: 8.4 V max Switch Type: Clicky (Clickie) Switch Location: Tailcap (Tail-cap) Modes: 3 Mode Arrangement: High > Mid > Fast Strobe Brightness: 1200 lumens maximum brightness (manufacturer rated actual 910~975 lumens) Runtime: Up to 3~4 hours run-time at 100% brightness (manufacturer rated) Reflector: Plating Smooth Reflector Lens: Glass Water Resistant : Yes light and battery pack can work in rainy days Accessories Includes: Battery pack; 100~240 V AC charger (US plug); 2 x Rubber O-rings; Adjustable head mount band