High powered light set boasting a 900 lumen front light, paired with a 300 lumen rear light AMPP900 900 lumen headlight offers plenty of brightness for road or trail use Viz300 rear light creates a blistering amount of light that demands attention keeping you safe from motorists and noticed by all USB rechargeability gives peace of mind that your light set will always be ready without fumbling with batteries Double clicking the headlight`s illuminated power button instantly switches to brightest setting Both lights feature flash settings that are bright enough for day time use