He used XP-L HI V2 as I was posting initially in my #955 post, which is not a low bin, it is the second highest bin you can get right now.
They go like this for XP-L HI, from highest to lowest: V3 V2 U6 U5 U4 U3 U2 T6 T5 T4 T3
So the XP-L HI is a bit different from XP-L HD as what top bin means.
thanks guys for your input and links. I notice the HI has almost as much throw as the dedome, but the tint is the main advantage with the HI.
I wish the HI was offered in the same ‘V’ numbers as the domed XPL. It seems the HI is about 2-3 levels lower - the HI is about to become available in V3 while the domed XPL is already available in V6 or so. Why aren’t they both offered in V6? I wouldn’t think the dome shape should be the factor in this.
Most likely the phosphor mix needed to get good tint is less efficient, much like the high CRI LEDs are also always a few bins behind.
ok, thank you.
I just checked Mountain Electronics and they have XPL-Dome-on 5000K tint is V6 while the XPL-HI 5000K tint is U5 or so. Maybe its just what they have in-stock but this does not reflect lower output bin for a given tint like 5000K?
Note: In other words, take a 5000K XPL. For Dome on, its V6, for HI its U5:
U5 is 6 bins lower than V6. U3-U4-U5-U6-V2-V3-V4-V5-V6.
The U5 bin still works pretty well, despite being a low bin.
On direct-drive triples, I’ve gotten the following results (at start, not at 30 seconds):
- Nichia 219B: 1800 lm
- XP-G2 S3 3C: 2250 lm
- XP-L HI U5 5000K: 3025 lm
- XP-L V6 2C de-domed: 3200 lm
The numbers are not very precise since they were taken at start instead of at 30 seconds. Output drops quickly at first. However, I think it clearly shows that the XP-L HI is significantly brighter than XP-G2 without sacrificing tint… and a higher-bin XP-L HI will probably be on par with a de-domed original XP-L.
It looks like the XPL-HI U5 is putting out 34% more output than the XPG2 S3 3C (3025/2250 = 1.34). Just doing a quick calculation (probably wrong on several levels but nonetheless…) if I take the factory OTF output of 7010 lumens for the XPG2 S3-3D version of the M43:
7010 x 1.34 = 9425 lumens estimate for the XPL-HI U5. I used the factory 7010 lumens number to try and adjust for the M43 factory power settings which are probably lower then yours (per triple LED).
This number above (9425) exceeds the factory XPL-Dedome OTF of 8540 lumens so I was expecting this to be so for Vinh but when I saw his actual measurement of 7450 lumens which is much lower than both numbers, I was a bit disappointed. And this was using your U5 output numbers, not the V2 bin he used which I was expecting would have even higher output than the U5.
Anyway, it is what it is, so I suppose we can be content with 7450 lumens, which is still way more than i need, lol!
well for starters… the meteor isn’t direct drive. if you calculate equivalent current (pct.cree.com), the XP-L HI U5 is doing about 5% more output over a XP-G2 S3. They have different vf’s though. eh… someone who knows more will jump in here soon and pull me out. either way… as you say… still plenty of light. I hope to get one soon.
Direct drive for XP-L will mean one current and and direct drive for XP-G2 will mean slightly different current due to vf differences, and due to the nature of direct drive being unregulated. Even if the XP-L is at the same efficiency as XP-G2 at some corresponding normal/low current like 1A, it does not matter, things get different at 5A for example, we could say that XP-G2 becomes then inefficient compared to XP-L (even if initially had the same efficiency at certain lower current)
When you have something regulated via current sense resistors, you can call them shunts, and as with any other shunts, stand alone shunts, the shunt in your digital multimeter (which is used to measure currents), etc, they must be in series with the current load and get a reading for the voltage dropped across them, based on which regulation happens.
The new XLP-HI specs from Int’l Outdoors:
Cool White - XP-L HI V3 ( +$70.00 )
CW XP-L HI V3 8350lm 44,000cd 5700K
The really interesting part is that XP-L HI lists higher throw than XP-G2…
CW S4 2B 7480lm 33,600cd 5700K
CW XP-L HI V3 8350lm 44,000cd 5700K
The +$70 bit is a bit unfortunate though.
Noooooo…I just bought the S42B, if I would have known the XP-L HI version was coming out I’d have waited.
I’ll buy yours for cheap :party:
I really wanted the XP-L HI to come out but now that I see the price :weary:
Right? Plus, my xpl d-d was only $205 shipped and the box says 8540 lumens and 4400k tint…
?
yep… the DD XP-L from RMM is the DEAL 8)
Right but why did my xpl non-hi (allegedly) pull more lumens and better tint then the new offering?
I thought the XP-L HD were binned higher? so more efficient?? where are the geniuses around here?
They are binned higher and there are some loses after dedoming. This test is interesting, posted in this very thread already. https://budgetlightforum.com/t/-/34496
As for the de-domed to have better tint than HI? Of course this is a very sensitive subjective matter, but just because it was rated 4400K does not mean it is not green dominant, using Kelvin scale alone for figuring out LEDs it is inaccurate as it does not account for the amount of green in an LED. I do not want to write too much about it really, certain graph are posted here on a weekly basis so there is some good info around. Problem is that even looking at this graph will be influenced by your monitor.
The S4 2B version is a steal at $178 for 7480 lumens and 33600cd. The HI is $250 (a quarter-grand!) for 8350 lumens and 44000cd.
Comparing those numbers, I suspect the human eye will notice only a slight increase in lumen output, a very slight increase in throw, but the human hand will notice a lot more heat, hence shorter useful time on turbo - all for just slight increases here and there.
I’m guessing that after the initial excitement of ‘the latest and greatest’ HI version dies down, everyone will still be happy with their M43, whichever version they have.
A lot more heat - Absolutely incorrect.
The output is higher because the XP-L HI V3 has a slight higher lumen per watt (heat) efficiency than S3 3D for example, so in no away there is any more heat, if anything an insignificant less amount of heat.