Yes it will shine 100ft, but it does flood out considerably. It will light up anything pretty bright at 50ft. The DB is a really good choice for converting for a couple of reasons. One being that its a unique light, I like it alot. Two, being that it uses double A's and has the ability to just run on 3 AA's is a plus. I took mine apart and by looking at how the board is secured to the light I can see why the DB is a good choice for converting. On a Maglite, the light bulb is afixed to a spring loaded holder, whereas the DB has a plate and a bulb with 2 pins are friction fitted. I believe a while ago someone posted pics of how the array looks like. And for a 18 led light it is cheaper than the CC Crane lights and in my opinion is also a more durable light than the CC's. And in terms of brightness compared to the CC, from what I can see on Telephony's site, it is brighter.