Got the Streamlight 2L-X USB and used it for some light light stuff at shooting league last night. Here are a couple pics for size comparisons of some lights I have. Most of them are small but I thought it could be fun to look at if any of you are interested. I also got a chance to hold a Klarus X2TC and it's almost the exact same size as the 2L-X. As you can see the Streamlight is pretty large compared to what I have been carrying. I am not sure I would want to go bigger than this. I think it fits decent in a pants pocket.