I have some 3000k as well but can’t decide what to put them in, kind of running out of hosts lol. I think I am going to try one in a P60 host tomorrow.
I didn’t get the 3500k as I was too late to put my name on that list and they sold out. Although generally 4000k is about as warm as I like anyways, 4500k I consider ideal in may cases. Although these nichia 4000k appear closer to 4500k Cree’s.
I built the luminous tool I mentioned earlier with the 4k 90+ CRI LED. At the same time I built a hugsby xp-1 with a 219C D320 5000k 70CRI from MTN.
Comparing them side by side tonight and the differnce is amazing. The 70cri LED looks great until you see it next to the 90cri, it completely blows it out of the water.
I get ~500 lumens from the 70cri and ~450 lumens from the 90cri.
Both are great lights though and handle a 10440 surprisingly well.
Yeah interesting how perception is on tints.
When I got my first HCRI it was an old Nichia 119T and it was better than anything I’d seen, every color ‘popped’ with it.
But if I saw that same Nichia now I would not be impressed in the slightest. It would look like a green Cree next to these newer gen Nichias.
Btw, clemence might get some 219B R9080, either it be 4000K or the 4500K. According to the R9080 chart the sw45 (4500K) look very promising. The tint chart has it shifted more toward the red spectrum unlike the other temps (4000K, 3500K etc).
This is indeed über. Compared to the good ol' 219Bs, increased power/current handling and efficiency for close to double the peak light output, coupled with even lower Vf…
This is a reeeally nice upgrade for lots of inexpensive flashlights, capable of transforming a dud into a jaw-dropping experience. Top notch WOW factor! :LOVE:
Remember, the manufactures reccomedations for max current are all base on non DTP attachments. Sure, we overdrive them beyond what they might be rated at even if they were spec’d on DTP copper but we couldn’t achieve what we do if those specs were absolutes.
Yup, and I love it in a trip. I used 20 awg wires and removed tail bypass to get it down to 11.55 amps. It started at over 16, to much for a titanium host.
Well, I went for 16x AMC7135 now. But I don’t know if I’ll leave it that way, this drivers gets freaking hot. No wonder though, about 5W or more getting dissipated. Have to do some more testing. Not a good idea to use high drain 18650’s, obviously…
yup, I tested with fully charged LG HE4, not what I’ll be using in the finished light. Will use a protected 3500mAh cell, so the excess voltage won’t be that high.
The modern 3500mAh cells should have no problem with that current. I think it’s better the whole cell gets warm a bit from within than having the driver in front of it running hot over 90°C.