I’d totally disagree with NW, I get a XML over a P7 any day of the week, as the P7 though a great light for the money over the last few year, is simply overawed by the power and reach of the newer XML. I have both and the P7 has been relegated to the spares bin. The focused beam can be over come if required, via a cheap replacement reflector or lenses.
I would not suggest using rthomas’s link either, not that I think he’s been unhelpful, but more to suggest that reviews on here of some of the £30 XML units, regard it as cheap for a reason. Even though you specified a limit on your cash, I would suggest to you the more expensive versions with better batteries or a UK supplier such as Smudge will be more economic in the long run.