Cygolite's Trion 1300 is an astoundingly bright light that fits in the palm of your hand. Utilizing a one piece design, three powerful Cree XM-L LEDs and refined optics, the Trion has a super wide beam angle and extra long throw to help you pick out more details. A whopping 1300 lumens turn night into day, and run time is 1 3/4 to 16 hours depending on which of the eight modes you select. It has a tool-free handlebar mount and high, medium, low, and boost 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. Need more run time? No problem! Simply plug in a Cygolite 7.6v battery pack (sold separately) so you can run on through the night.