Volt 400 double click to high mode single click returns to the previous mode 5 modes flashing constant high middle low runtime 60hr 50lm 11hr 400lm 3hr 400lm 8hr 100lm 18hr 50lm helmet mount compatible li ion polymer rechargeable battery recharge time 6 hours battery compatible with volt 800 volt 700 volt 300 volt 50rapid x2 rear cob led technology li polymer battery upto 50 lumen output 360 degree visibility complex circuitry allows safe charge and discharge usb