Hello, I bought a bike that has this tailight and he included the magnet but it came with no instructions, can someone tell me how to change the brake pattern settings, this is a Bal 1. Thanks

 

Touch the magnet (there should be an end of the magnet with a red dot on it, that end towards the light) near the top right-hand corner of the light face. Each time you touch the magnet to it the setting will change. If you touch it without the brake lever pulled in it will change the running light intensity (low, med, high). Touch it with the brake lever pulled in (use a zip tie to hold it while you adjust the light) it will change the brake light pattern. Hope this helps.

 

Instructions are on BAL's website.