By the courtesy of 4Sevens I have on loan the new High CRI (warm white) Preon 2- as well as the current limited run Neutral White to look at.
the 4Sevens Preon 2 has been around a while now the size and appearance do not vary - they all look like the long black one (marked as the 1st gen Warm White)
I specifically asked for a couple of different colored Preon 1 bodies to show that one can play "lego" with the Preons - to configure them as Preon 1's with clickies. Normal cool white Preons do come in different colors as well - as shown in the blue colored Cool white Preon 2 - but that has the standard supplied plain end cap for the Preon 1 - which makes the light a twisty........
So this shows the Preon is a very versatile system light.
How do the High CRI, the current Neutral White compare with the standard Cool White?
This may be the best way -
do a show & tell....
Although the heads are are mostly black
there is a difference between the warm whites and the cool or neutral whites
in the emitter/reflector:
Enough of the introduction -
rubber meeting road -
High CRI (Warm) Preon 2 vs Cool White (1st gen) Max, NiMH
The High CRI being a Warm White shows distinctly as yellow/orange in comparison to the Cool White.
High CRI (Warm) Vs 1st Gen Warm White Max, NiMH
doesn't show so well in photos - but the High CRI seems to show paler yellow going toward pale green - the 1st gen Warm White seems pink/browner to my eyes
High CRI (Warm) vs. current gen Neutral White - Max, NiMH
what surprised me was how UNyellow the Neutral white was - in fact when I first got the Neutral white I thought 4Sevens had mistakenly sent me Cool White!!
This probably means that 4Sevens got a higher color temp bin of Neutral White - perhaps not the fabled 3A (I wish) - but it seems closer to the 4 bin rather than the previous 5A3 or 5B3s.......
Neutral White vs. 1st gen Cool White, Max, NiMH
this comparison illustrates how cool these current Neutral Whites are, if I were guessing - they are possibly 4A or B's?
I am really liking these as they do almost give a "neutral" color at night when yellow tungsten (2700deg K) is prevalent.
So how does the High CRI work out?
To be very honest I found it very, very difficult to tell -
especially when I compare the new High CRI and the 1st gen Warm White.
Probably the best way is to just present the photos I took of homemade Macbeth color chart -
and place them next to each other
(I think CPF is arranged in such a way that I can no longer see my beamshots laid out next to each other horizonatlly - at least on my monitor - hopefully some with higher resolution and/or wider monitors can see that the comparison beamshots are laid out in pairs?)
I can see the desirability of having High CRI
(I believe that is one of the reasons for the slower acceptance of LEDs in general lighting - cost being the overriding one for now)
However on this look-see - subjectively I was very pleasantly surprised by this variant of the Neutral White - which looks a lot cooler/whiter than the two previous limited runs of 4Sevens Neutral Whites - I managed to mislaid my Preon Neutral white -
but I do have both limited runs of the Quark AA variants that I can do comparison beamshots to the current Neutral White - if there is any interest.