Tiny but mighty. When I first opened these, I was surprised at how small they were. But, I got out one of my LED flashlights that I thought were very bright. OMG...This flashlight blows them away. Super bright, and it adjusts from a large beam to a small one, which lets you see really far away. It also has 3 different modes such as blinking, but the brightness is the big pay off. I really like these!