I have the non-digital version of the Gen3, & like the light it puts out, but didn't like the mount. Couldn't get the quick release to work on my bars, so I just rigged it up. It does last a long time on my rechargeables though, & coupled with a helmet light works, it works. I wanted the HL-EL 500, so I have one on back order & putting the Gen3 on my wife's bike, as she likes to ride at night with me. Hope I don't experience the same thing with the mount on the 500 as you have.