CatEyes Sumo 2 lighting system is our mid level offering that outshines other brands premium lights. With one less LED than its big brother, the Sumo 2 puts out a powerful 3500 candlepower at max output. The standard FlexTight bracket ensures maximum security and easily adapts to any style of handlebar. The 2 LEDs are protected by a sturdy, all aluminum housing. Featuring the DNA Dynamic, Normal, and All Night power modes and one flashing mode, each battery charge will last between 1.5 and 35 hours. The 7.4V x 4600mAH Li Ion battery has a charge time of 5 hrs.