Lezyne Fusion Drive 500+ / KTV Drive Pro+ Light PairFeature packed visibility solution With its impressive 500 lumen output and a maximum runtime of 35 hours, this light ensures exceptional visibility and reliability This light offers six output modes, including highly disruptive Daytime Flash ensuring maximum visibility during daylight hours, and the intelligent Power Indicator displays battery runtime The CNC machined aluminum construction with cooling fins guarantees durability and efficient heat