These flashlights are wonderful and now I'm never without them. They are tiny and rechargeable so they're always ready to go. It can burn for 45 hours on 1 lumen which is enough to walk by if your eyes have gotten used to the dark. That low-level is also good for reading in bed etc. Conversely you can operate it for 1 hour at 45 lumens. That's very bright although it's life is shorter. These are very slim and so I wear one on a chain around my neck. If I get out of bed in the middle of the night I'm never left in the dark. It's so slim that I don't even feel it. I've got one on my keychain too!

I have purchased numerous Tube lights for mainly younger ladies with no flashlight experience suddenly finding a need. Simple to use, easily recharged, they now find them indispensable. A possible addition would be a dual light output of white and red for night work by nurses uing low light conditions. I have purchaed more than two dozen of these and never have been disappointed.

PROS: Infinite levels of light, but there is NO clear indication when it reaches its brightest level, and if you don't release the button at the peak, the light will go back to its lowest setting. Still, a very nice keychain light that most people would find very useful and easy to use. Great gift.CONS: Light looks identical to the original version, so no way to tell which version you have--the 10 lumen difference is subtle, and probably most eyes won't be able to tell the difference. Rechargeable is great....until the battery eventually dies. I've already had an original Tube die...which seems such a waste.