had my erider 15 for 6 months
had light problems tim and ken both perservered with me to replace bulbs,fuses and eventually wiring
so simple to do and it never seemed a problem too far for them to help me solvethis problem
great product so fun to use
i do a 20km trip twice a week no problem and hills are a breeze i even overtake other electric bike users this is a qualityproduct i highly reccommend
David Newey