ive used both,, the actul lumenock and have also made a few of my own,,,,the lumenock i wasnt to impressed with, the i bout 2 of them and one barely even worked, then the other one work fantastically, came on evey time a shot, but it didnt always stay on when it hit the target,, i ended up losin it last year after i shot my deer, the one that didnt work very well i sent in to burt coyote and they sent me a new one, and it work just fine. but it broke one of the ears off when i shot my turkey this year. The homemade one i only used for practice cuz i didnt like leavin them on, (that and the ones i did make only lasted a few dozen shots). i have thought about makin somemore and tinkering with them, but i have yet to by anymore of the bobber lights, i have had mixed expreinces with both of them, the lumenock are nice when they work,,but for 9 buck each i would have very many of them,
good luck