Received my UL-1 a few days ago, it's not a bad tiny little thing to throw in my laptop bag and completely forget about, until it's needed. I can see it being useful to plug into my laptop, or SP1 charger and pointing it at the ceiling with it's included gooseneck for a bit of ambient light duties when the power goes out, leaving a handheld flashlight free to walk around with. If you point it at the ceiling with the gooseneck, it does well with a nice super floody/diffused beam. It's no bigger than a flash drive. Definitely recommend for those of us who travel and tote around laptops.
I've been using an 18650 Convoy I ordered off of
fastech last fall on a whim, and it's been great, but bumping this thread sort of peaked my interest and attention span towards flashlights lately. The Convoy I have has been the bees knees for hiking and such, but yeah it's kind of a one trick pony, as in it goes from damn bright, to holy crap, to OMG HOLY CRAP. After seeing the UL-1, I'm realizing it would be really useful to have a handheld with more even spaced modes, especially a nice lower range mode.
So I kind of splurged on some superfluous flashlight stuff. Ordered a Solarforce L2 P60 drop-in host, and some more affordable drop-ins to try out different LED types: Nichia high CRI, MT-G2, some colors (for gits and shiggles), etc.
I also found that there are a couple nifty flashlights that can fit and handle 18350 batteries, and they gain considerable power when driven with IMRs compared to the CR123s. They look small enough to to throw in your pocket and probably not feel it's even there. I'm really considering one... I've got plenty of AW 18350s that are not seeing much use at all outside of my Hammer mech that gets used for like 1 hour every two weeks or so. The Jetbeam RRT-01 is infinitely adjustable from 0 to something like 600+ lumens on an 18350, and it's around 80mm in length. Very tempting...
I can't believe I actually spent some good hours reading about flashlights, then ordered a P60 host, in order to research what kind of "expensive" bigger flashlight I will no doubt soon purchase. Sigh... I sometimes absolutely hate how my brain can go off on tangents like this at times. I mean... seriously... flashlights??? Sigh...