Does anybody know where to get lamps relatively cheap (£60 or less) that are mains rechargeable + go at least 200m. Also what do you do if you have found a hole, what distance can you go at and so on (please note I am shooting with a Weihrauch HW80 air rifle at full legal limit

Thanks for all your help

SMK B3-f(My first rifle!) Weihrauch HW80 with 3-9X40 Scope and
Walther CPM-1 Olympic Match Pistol