You need a LED headlamp. Husky at home depot has one that work pretty well for me. It take a minute to get used to it because it is white light instead of the normal yellow look we are used to. The led draw hardly any power and last for a long time... 4 months since I got it and use it all the time with the original batteries.
This is CABL.com posting #185749. Tiny Link: cabl.co/mWt7