Packing two premium LEDs for class-leading light output, this light uses a super high capacity lithium-ion battery, so all those lumens come with long runtimes. A clever user interface, meanwhile, gives you four extra modes for secondary uses, but it also let's you focus on the three steady modes that matter. Still putting a flashlight on your handlebar? See what you've been missing with the new Flux? 1200 headlight.