Lured by the high luminus, lumini, lumenses?.. LM found on alot of the ebay headlights. I finally spent the $12 and ordered a magicshine clone. Here is where things went wrong. 1. The light circuit is improperly grounded and any moderate hit breaks the circuit which turns the light off. This is amusing on a long climb, but less so when you are screaming downhill in the dead of night. 2. The poor algorithm for sensing battery use. Most lights use voltage, amperage, and other factors to sense battery capacity and usage. Seems like the cheapies use an internal clock set at a predetermined time. 3. Wires are extremely long and shielding are prone to fall out. My front handlebars look like I'm using wires as grip tape. 4. Doesn't stay in one place. Despite 2 rubberband sizes, the lights constantly want to spotlight my front tire, rather than the road ahead. That is all. Lesson learned.