KC1 keychain light is available now

yea, I didn't know if it was knock on vaping or on efest. But I figured probably both. Anyway, I switched over to molicel and vtc6's about a year ago, maybe less. A little after I got into flashlights.

althoygh off gassing off batteries would explain a lot of my mental shortcomings!

my last order from Hank (June 6) took 5 days to ship to me, 7 days total from ordering.

the order im waiting on now has been 19 days, and 14 days of shipping, still not here. So wierd how that happens. Although the package has been "sitting" in the US airport (customs probably) for the last 11 days, and I finally got the update today that it's thinking about moving. I was getting a little worried though..

:person_facepalming: :laughing:

I was only joking. I presumed you weren’t actually vaping the batteries! Haha

It was neither. It was a classic dad-joke. You said that you had been vaping their batteries for 7-8 years. When taken literally for the sake of a good pun, it reads as though you had actually been inhaling the gases of batteries. Terrible humor, but that’s what’s so great about it. That’s my kind of humor.

I just found out that the Panasonic/Sanyo NCR18650GA’s (flat tops) will work in the D18! Pretty cool. I do have a question though: I know that the CDR of 10A that the GA’s have should work fine, but do you think they will hold the light back at all? Will I get any better performance with 30Q’s and their CDR of 15A? The light will have 18x SST-20 4000k, if that makes a difference.

I’m asking because I’m about to place a big battery order. I like the extra capacity of the GA’s (500 extra mAh is nothing to scoff at), and I don’t think any of my other lights I ordered need more than 10A. So it’d be cool if I could just order a bunch of GA’s and be done with it.

Thanks!

I have used both of these with my D4SV2, W2.

  • Shockli 26650 5500mAh 20A / 30A
  • Vapcell G53 26650 5300mAh 20A

Both work great, but the Shockli is probably the better choice.

Anyone have a good way to get ahold of Hank? Tried PM and email but no response.

See if the community can answer your question first? Hank is flat out flowing 219bs! :stuck_out_tongue:

What is the lumen and and candela of a D4v2 and D4Sv2 with the Nichia 219B, R9080, 3500K?

I’d guess compared to sst-20 4000k it would be about 15% less lumens and 20% less candela. On a quad with clear optics you would still get a decent output though. Someone might have a more scientific answer!

I thought that too. I know the SST20 4000k makes 10,000 Lumen in the D18. So I asked Hank how much the 219B’s will put out in a D18. His answer was10,000 Lumen. So 15% is probably a bit too high. The 219B’s would need to only put out 8500 Lumen in the D18 for that to be the case.

Fireflies uses both SST20 and 219B in their lights, so we can see from their specs that the difference in the same hosts is minimal. The PL47g2 is essentially the D4v2, and Fireflies gets that to like 2500 Lumen in 219B’s. The D4v2 in SST20 does 3000 Lumen. Maybe there is a difference in how hard each company runs their smaller lights but they are pretty similar Lumen-wise all things considered, especially the higher you run them. SST20 a bit brighter, but not by too much. The bigger difference would be in the beam profiles. The SST20 is thowier while the 219B is more floody. So even though they are similar Lumen, they will still feel pretty different from each other, especially in color.

8500 is more realistic.

I did this mod when the D18 first came out and got 7,714lm with slightly used 30Q’s and i’m pretty sure that was measured after about 2-3s. Dont expect 10,000lm

What do you think about 9A+noFET and SST20 (2700/4000K) in D4V2? If there is such an option. Is it better to use the classic 5A or 7.5A?

I dont know for sure but you might be able to just resistor swap a newer generation driver and make your 5A/7.5A driver and have a 9A+FET. For this size host 9A might as well be FET cause they are both too hot so in reality I dont see much purpose in going past the standard 5-7.5A. Only reason it exists is just to keep the LEDs from dying for a niche case.

I See a lot of people doing the 9a + FET on Reddit. It gives you a higher regulation which there really isn't a downside with sst20. Id go with it.

I think it is more common on multi emitter lights for sst20 4000k and below to get do in the 500-550lumen ranger per emitter. I don't know anything about the 219b's, but everything I've read they put out less lumens than even the 4000k or 2700k sst20. I would think 10,000 lumens is high for 219b or really even for sst20 high cri. I could be wrong.

[quote=contactcr]

[quote=@Lojik]

That’s mostly what I’m prepping myself to expect. But in doing some math my expectations unwillingly swell slightly. I know someone asked Hank about the 219B setup and apparently he has some tweaks that people have reported push the 219B’s well and is great.

So in just doing some numbers that other lights do is how I can see it happening.

Pl47g2 - 4 emitters - 2500 Lumen = 625 Lumen per LED.

EO7x Pro - 7 emitters - 3600 Lumen = 515 Lumen per LED

E12R - 12 Emitters - 6800 Lumen = 567 Lumen per LED

If I just estimate 500 Lumen per emitter on the D18, it still comes out to 9000 Lumen. And if I estimate it closer to what other lights are getting roughly, it exceeds 10,000 Lumen.

As I said, I’m still tempering my expectations. But I am doing a bit of math and some wishful thinking. Now if there are reasons I don’t know about that would prohibit 18 219B’s from hitting 10,000 Lumen, like limitations with the internals and drivers, then that’s a different story. I don’t know about internals like that, but my math def has me hoping for the best.

In order to reach 555 lumens the 219b would have to be driven at ~2.3A. For 18 emitters that’s >40A. That’s a lot, particularly for three 18650 cells and when you factor in other losses in the circuit.

Furthermore, some tests show the D18 with SST-20 maxing out at around 7500 lumens.

Just because a manufacturer advertises specific lumen amount doesn’t always mean the light can actually reach it. I think it’s unrealistic to expect 10000 lumens from a D18 with 219b but I could be wrong.

So! I have pretty good news, not great news but pretty damn good-

I Just received a dt8 with xpl-hi 5D, my first 5D in a couple months because of the whole yellow thing. Well, this 5D is not AS ROSY as the 6-8 months ago 5D, but it is WAY LESS yellow than the last couple months of 5D (from what I know, because like I said it's been 2-3 months). I'd say it's in between the yellow recent 5d and the more rosy one, but if I'm being honest it is CLOSER to the ROSY one.

I know there are at least a couple people who I've chatted with that will be interested in this info. Tomorrow morning I am going to make my best attempt at phoning this, but just know they are getting much better. They're not as good as they were, but right now they are a lot better than they have been.