Lunasol lottery observations (small set)

[yaesumofo]

Lunasol Lottery.
OK I know it is a small sample but with 4 (2 ea) lunasol's here are my observations regarding the Emitter lottery as it pertains to the Lunasol.
OK The two Lunasol 20 which I have the Low beam Nichia emitters are for all reasonable purposes the beams are exactly the same.
The Lunasol 20 High beam are so extremely close that to my eye there is just a slight difference between them tint wise brightness on the two lights is pretty much the same. When I get some new batteries I will run the lights for 5 minutes and measure them for output with my meterman 631. Until then any observations regarding the power levels from your Lunawolf are welcome here AFAIAK.

The Lunasol 27 was a little different.
On low again the beams are virtually identical. When the high beam is engaged there is slightly more difference between the lights. With one being a little warmer than the other. The Brightness of these two lights is very close, again I will measure them and post the results here when I get some more batteries.

Overall between the 2 pairs of lights there is more difference between the Lunasol 27 lights with the Lunasol 20's being very close to being the same.

I suspect a larger sample set would yield a wider variety of tints and brightness levels.
BTW I was able to measure the color temperature of one of each of these today (the pair I take to work) and here are the results.

The Lunasol 20 on low measured 10,000 degrees K
On high it measured 8,500 degrees K.

The Lunasol 27 Low beam measured 5,900 degrees K.
and the High beam measured 6,500 degrees K.

I is clear that the Lunasol 27 is a whole lot closer to daylight than the Lunasol 20.
That 5,900k is a pretty impressive number IMHO. The Nichia emitters do a good job of producing daylight colored light. I suspect that these will be used in more and more light panels used for motion picture still and general "digital" image capture.

Anyway that is all I have.
Yaesumofo

 

[pezdragon]

I just recieved a second LunaSol 27 and I agree that the Nichia emitters are very close on tint but the high on my first 27 is somewhat cooler than the second while the lumen outputs are very close, at least to my eyes.
The LS 20 is quite cooler than either.

 

[PoliceScannerMan]

Cool thread James. I believe you hold the record for the most Lunasol threads! :laughing:

BTW: The LS20 has been my #1 EDC since it arrived.

 

[souptree]

I feel like I won the lottery big time with my LS27. My LS20 was too cool for me, so I sold it. I am hoping to catch one of the future waves, and hoping for a warmer tint when I do. I am definitely convinced that the low on the LS20 is superior to that on the PD-S. Whether the high on the LS20 is as useful as the PD-S high, that I am not so sure about. I would like to spend some trail time with one in each hand to find out.

The tint lottery is one of the most frustrating and annoying things about this hobby, but on the other hand, it does keep things interesting.

In any event, the lottery is alive and well....

 

[yaesumofo]

OK so I have 2 of each of the Lunasol's.
At work I prefer the tint of the Lunasol 20 it is just much whiter.
The cooler tint works well in a primarily tungsten environment (I define that an an area where the available light even if dim is created by tungsten lights. For some reason the cooler Lunasol looks whiter there.
Like I said there are slight differences between the Lunasol 27 lights. I would be willing to wager that if a larger sample set was created there would be a vast majority of lights falling within a somewhat small range of color temperatures / tints. with a few lights falling outside the mean.

A study of this nature would be interesting.
IMHO It would be pretty cool to do a Color temperature meter light calibration like was done with the Light meters where several lights were passed around and everybody measured the lights with their meters and posted the results. the lights had been calibrated and were of known output. this way everybody will was/ able to determine how far outside their meter is outside the mean.


Anyway a single calibrated color meter and a scientific method for everybody to follow will give us an idea where their lights are compared to daylight for example.
While the information is of little importance it might be a fun exercise. If nothing else many people would get an education about tints and color temperatures...
Ummm we will see.
Yaesumofo

 

[skcheng]

I just received my 2nd LS 27. On low, the beams are identical. On high, one is whiter, while the 2nd is warmer with a slight "greenish" tint. This is the first light that I have 2 of, and it's interesting to see the little variation in color. To me, this is only noticeable when I shine on my white sheetrock walls. In actual use, I can't discern much difference.

 

[arewethereyetdad]

BTW: The LS20 has been my #1 EDC since it arrived.

Same here.