It works fine and solved my problem.

A original replacement slider with built-in in controller. I bought it as the bike cut out on acceleration. I wasn't sure if it was the wheel or lcd display or battery. I took a chance and bought a replacement controller from yose power and the bike is back to its best.i highly recommend buying the 350w conversion as it is reliable and fast it was my fault as it was left out in the rain for weeks. I'm going to buy another conversion from yose for my girlfriends bike .thanks yose for a great kit.