built in USB-C charging and great battery life at modest outputs
can be used as a powerbank
NoPWM and very low Flicker Index
ability to turn off one side of the LEDs
adjustable color temperature (I like the warm end of the spectrum when winding down before bedtime)
Red light option
I have one of these as well.
I prefer close to a 50/50 mix of the warm and cool LEDs.
It’s smaller than I thought it would be but I think that’s a good thing.
I have yet to use it in a real world situation but I think it’s a great product.
I ended up with 3 of them and each has a little carabiner for vanlife. They all live in the van which makes the onboard charging very convenient. I’d love a sunset mode, I use that a lot on my lanterns. Even at home I have a Fireflies 1800K NOV-Mu with the lantern kit and a couple of Wurkkos TS10,s it’s lovely not having to get out of bed to switch everything off.
Only going to be so long until another charge port seal accidentally gets pulled off. I wish Sofirn would address their port covers.
I haven’t tried a plain LT1S, but I like the LT1S Pro.
Would be nice to get a production model at some point, because I only have a prototype… and the USB port broke off the 2nd time I put a cable in it. When I removed the cable, it took the entire port with it. Yay for prototypes.
So that completely blocks some of its best features… charging and powerbank.
It’s otherwise a pretty good lantern though, and … if I ever remember to do it, I’ve been meaning to speed up the PWM on the non-red modes. The power regulator chips for the white LEDs can handle a lot faster pulses than the ones used for the red LEDs, and they all share a timer so they can’t run at different speeds at the same time, and at the time it was tricky to make it change speeds according to which channels were active. But I have a better idea how to do that now, so I probably should.
I love Anduril, and do wish the LT1S had the sunset feature of the LT1S Pro
but the Pro has bad PWM:
" I want to like the LT1S Pro, but it makes it difficult, because it suffers from visible and audible PWM through much of its brightness range."
PWM issue also reported here:
solving the bad PWM would make a big difference, to me!
I have four LT1S lanterns.
They are quite impressive.
I like Anduril, too, but I don’t have to have it. 
I have two and have enjoyed them, but agree they would have benefitted from a “sunset” or off-timer option. Since then I have purchased two BLF LT1’s and my LT1S units have been benched. The LT1 using Anduril II offers a covenient sunset mode from the main ramp, and achieves slightly lower outputs. One of them is my bedside lamp.
I never used the red light mode on LT1S…too bright even at its lowest setting from my prospective. I bought the standard LT1S over the PRO primarily due to the awful blue status LED’s and reported complaints of PWM on the PRO version. Sacrificed the advantages of Anduril, but I’m happier with standard model.
Yeah, unfortunately I can’t fix the PWM in the red modes. The regulator chip used on that channel stops functioning when the pulses are too quick, and its maximum speed is in the audible range for most people. If I hook it up to my bench power supply, it really sings. Can kind of play songs on it while sliding around the ramp.
It should be able to run the white channel regulator chips at a faster speed though, as long as the red channel is entirely off.
With a firmware update, it can go even lower. I managed to add PWM+DSM on the LT1, which makes the low modes lower and improves the sunset mode. And, more importantly, it gives the low modes significantly higher tint ramping resolution.
I only have an original LT1 prototype though, with attiny85. It can just barely handle PWM+DSM. It should work better on the newer t1616 models, but I don’t have one so I haven’t personally been able to test the changes on that.
I have both an LT1S and a Pro. I like the LT1S more than the Pro. However, the Pro has more battery life. If the LT1S had the same battery capacity as the Pro, it’d be perfect!
