You won't go wrong with either one of the streamlights. Have a couple of stingers and an ancient sl 20. I would recomend the stinger over the sl 20, much smaller, lighter, easier to mount in a vehicle, and much more likely to be with you when you need it. The sl 20 i have had for long time, purchased back in the 80's sometime. It has had the bulb replaced once as well as the lense, the switch once under warrenty, and the battery pack lasts about four years.