I use the Light & Motion Solo Logic and have had very good service from it. I also use a charger that is designed for the RC model hobbys that is adjustible for many different settings. If you use NiCad or Nimh battries you realy should use a charger with delta peak detection for the type of battery you are using in your system. The worst killer of bulbs is jaring and vibration, and who gets that on a bike? I can never have too many spairs!