Hope R2 LED Vision Epic (1X4 Cell Es Battery). A super bright light with two Cree LEDs and up to 1300 lumens of light output with a backlit switch which makes controlling the light easier than ever even in the darkest of environments. The light is powered by a 4 cell Es battery pack which powers the battery up to 60 hours. For mounting the light the R2 comes with bayonet fitting handlebar mount, which works with most frames, a helmet mount and head harness In the Box. R2 LED light head4 cell ES battery packBayonet fitting handlebar mountHelmet mountHead harness1m extension cableFeatures. 2 x Cree LEDsUp to 1300 lumens output6 different light outputs3200mAh rechargeable lithium-ion batteryUp to 60 hours of battery lifeBattery light indicatorColoured backlit switchWeighs 348gBuy Hope Lights from Chain Reaction Cycles, the World’s Largest Online Bike Store.