The AMPP500 comes with up to 500 lumens, maximum side visibility, securely held in place with an adjustable FlexTight bracket. Four light modes (High / Low / Daytime HyperConstant / Flashing) provide 1.5 to 50hr run time. Paired with a ViZ150 taillight with 4 modes including a 150lm Daytime Hyperflash function for daytime visibility.