The Olight i1 EOS is very similar to the Quark mini that 4Sevens makes. Both lights are ultra compact with super output and run time relative to their small size.
The i1 uses a CREE XM-L LED which is powered by a single CR123 lithium cell. The i1 has three different brightness settings which makes picking the amount of light you need very convenient. Instead of only having a very low and very high output, you have the choice of choosing a middle ground between the two. Something that I really like about the i1 is that it has a pocket clip, unlike most other lights its size. A flashlight this size with a pocket clip can pretty much disappear when you’re wearing it. Instead of sitting at the bottom of a pocket, the light is clipped just inside the pocket which keeps it out of the way.
I’ve long praised the virtues of the small but powerful flashlight. This i1 is a perfect choice for someone looking for a tiny torch.