The D1 is a high-quality light built as a compact thrower, and running on a single 18650/18500/18350 battery. Features a wide range of customizable options, and uses the sophisticated Anduril user interface.
Although the Osram W1 emitter I selected (for max throw) is not as efficient as many of the other other options available, it is an outstanding thrower.
Thanks for that. I’ve been thinking these reviews are getting too long, but it was a super nice light to test (and use!). It’s one of my new favourites.
I don’t have the specifics, but I know its a linear driver with this emitter (and most of the others). Hank would substitute a boost driver if you went for one of the high output/high voltage emitters (not sure why people would select that in this build, but it is an option).