I got an old Surefire E2e many years ago, carried it for several years and loved it. Then it was replaced by other flashlights and faded from memory. Today I handled it for a bit and I still like it but it is clear that it is fairly old and tired compared to pretty much anything that is available today. My question is simply this: is it worth spending a little money on upgrading it to a LED-head? I am not going to pay for Surefire original parts so their LED conversion head is out of the question. Looking around a bit there seem to be a few no-name parts that is fairly low cost but I have no idea how they perform. Anyone have any experience? I'm not looking for the Surefire to replace anything I carry currently, just trying to bring a little bit of life into it as it seems a shame to have it stored in the back of the closet.