Great product horn us loud and light is bright and holds a great charge great so far with multiple ways to attach it i attached mine vertically at the rear of my bike

Oops i may have been a little hasty to post this review below for some reason i was thinking there were white light modes included in the tail lightfiguring out the workings aint quite so bad if your not trying to get the unit to do something it wasnt designed to do

Great light but no instructions