I know quite a few people use Surefires. Here's another really good flashlight to try. It's 120 lumens and I was able to see quite a lot on day 6 with brown eggs.
http://www.sears.com/shc/s/p_10153_12605_03493643000P?keyword=flashlight
http://www.sears.com/shc/s/p_10153_12605_03493643000P?keyword=flashlight