Black 2D Mag-Lite

It's a Mag.

2D is a pretty nice size.

As you can see in the photo below, this Mag has a Nite-Ize LED upgrade, providing extremely long runtime. These modules are bright enough for indoor use and can adapt to any voltage between one and nine volts.

That tailspring is pretty stiff, making battery changes a real chore.

Current draw is 0.18A at 2.6V for 0.468W.

The Nite-Ize PR LED can be found at many retail stores for less than $10. Get one. In fact, get a few, because you'll probably find even more places to put one.