I use this Fahrradlampenset been around for a few months. It is very bright, easy to assemble and also processed decent, what you can not say about most other bike LED lightings. I had the batteries withstand daily 1/2 hour usage has not change. The LEDs are still as bright as the day. If I yet may complain at a high level: The backlight is sometimes frimelig remove from the holder. CONCLUSION: top product at a top price.
