I have here a new lamp by Deben "Tracer Sport Light Pro 170" a blatant copy of the Striker. I have also been given a 210 version of the same lamp to test, it's 30mm smaller than the Blitz but boost's the same 800m beam. Same I haven't got the Blitz to compare it with.
Also on test a 22amp/hour lithium battery, I'm not sure I will be able to give you any answers about this, time wise that is as there isn't enough lamping here at the mo, anyway my dogs ain't that fit.
I have checked the wiring and it looks good, they have fitted a rubber grommet sort of thing to stop the wires from pulling at