Just because the sun is going down doesn't mean you need to cut your ride short with Cygolite's MityCross 800 OSP. It uses dual Cree LED's to unleash a wide beam with lots of throw so you can pick out more depth and details. 800 lumens light your way, and run time is 2:10 to 16 hours depending on which of the 6 modes you select. It has a high, medium, and low modes as well as flashing and walking modes. The unique SteadyPulse mode alerts night time motorists with pulses of light while still constantly lighting your path. And, the OSP technology lets you fine tune brightness and flash speeds without external hardware or software. The MityCross comes with an external stem mount battery, wall charger, cables, and a helmet and handlebar mount.