With up to 800 lumens of output and a powerful Daytime Flash mode this cycling LED light is impressive day or night With up to 800 lumens of output and a powerful Daytime Flash mode this cycling LED light is impressive day or night Features a lightweight, durable machined aluminum body with integrated cooling fins and cutouts for 180? of front visibility The micro USB rechargeable design boasts an impressive 87-hour max run time (15 hour increase) and eight unique output modes