Courtesy of 4Sevens I have a Preon ReVO (1x AAA) to look at.
First the size:
as one can see it is pretty compact smaller than most of the other multi-level single AAA lights - almost in the same dimension/size as the 5mm single AAA lights as typified by the classic Arc-AAA.
Heads:
this is pretty remarkable as the ReVO has a full reflector and front lens glass and multi-level current regulated circuitry.
The ReVO is based on the Cree XP-E-R2 which has a smaller die allowing a tighter hotspot for the tiny reflector used.
How does it compare in brightness?
vs. 4Sevens Preon 1 (1xAAA) both Max NiMH
It would seem that the new ReVO a bit brighter than the XP-G-R5 Preon 1 - the ReVO is rated at 82 OTF lumens and the Preon 1 is rated at 70 OTF lumens - but bear in mind the Preon 1 has a wider hotspot so it spreads its light over a wider area.
But looking at these comparison beamshots one may be able to understand why the smaller XP-E die was chosen.
vs. Fenix LD01 Stainless Steel both max NiMH
my older Fenix LD01ss is a Cree XR-E Q5 and is rated at 80 lumens on high.
The comparison beamshots seems to show about equal brightness - with the Q5 Fenix having a tighter hotspot.
How about a real 5mm single AAA light?
minimum vs. ArcAAA both NiMH
the Arc-AAA is brighter! - well actually this is good news since the ReVO is a multi-level light one would hope that the low level is low - ReVO's low is rated at 1.5 lumens.......
medium-level vs. ArcAAA both NiMH
clearly the mid-level on the ReVO is much brighter than the classic Arc-AAA (circa early 2003) - this is not surprising since the ReVO is rated at 19.8 lumens.
On the sample I have - switching modes needs pretty quick off and on - much quicker than the stated 2 seconds - for me it seemed that with any hesitation would not switch to the next mode - but revert back to the low mode - so I have to be pretty conscious of doing the switching and quick.
Another point to note is that despite the use of a compressible O-ring surrounding the positive contact -
there is obvious battery rattle even when backed off just a fraction - to a point where one would consider a safe lock-out. Backing off to a point where there is no battery rattle one can press the head in to turn on the light without twisting.
Overall this is a neat little light - surprisingly bright but very versatile in having the lower levels - especially having the sequence of low-medium-high -
I particularly like this since this allows one to turn on the light for closer hand-held tasks without dazzling, and if a brighter level is needed - comes with a mere quick off-on twist - but on my sample it has to be pretty quick......
NOTE: the ReVO is called more fully a Preon ReVO so it is found under the Preon grouping at 4Sevens.com
First the size:
as one can see it is pretty compact smaller than most of the other multi-level single AAA lights - almost in the same dimension/size as the 5mm single AAA lights as typified by the classic Arc-AAA.
Heads:
this is pretty remarkable as the ReVO has a full reflector and front lens glass and multi-level current regulated circuitry.
The ReVO is based on the Cree XP-E-R2 which has a smaller die allowing a tighter hotspot for the tiny reflector used.
How does it compare in brightness?
vs. 4Sevens Preon 1 (1xAAA) both Max NiMH
It would seem that the new ReVO a bit brighter than the XP-G-R5 Preon 1 - the ReVO is rated at 82 OTF lumens and the Preon 1 is rated at 70 OTF lumens - but bear in mind the Preon 1 has a wider hotspot so it spreads its light over a wider area.
But looking at these comparison beamshots one may be able to understand why the smaller XP-E die was chosen.
vs. Fenix LD01 Stainless Steel both max NiMH
my older Fenix LD01ss is a Cree XR-E Q5 and is rated at 80 lumens on high.
The comparison beamshots seems to show about equal brightness - with the Q5 Fenix having a tighter hotspot.
How about a real 5mm single AAA light?
minimum vs. ArcAAA both NiMH
the Arc-AAA is brighter! - well actually this is good news since the ReVO is a multi-level light one would hope that the low level is low - ReVO's low is rated at 1.5 lumens.......
medium-level vs. ArcAAA both NiMH
clearly the mid-level on the ReVO is much brighter than the classic Arc-AAA (circa early 2003) - this is not surprising since the ReVO is rated at 19.8 lumens.
On the sample I have - switching modes needs pretty quick off and on - much quicker than the stated 2 seconds - for me it seemed that with any hesitation would not switch to the next mode - but revert back to the low mode - so I have to be pretty conscious of doing the switching and quick.
Another point to note is that despite the use of a compressible O-ring surrounding the positive contact -
there is obvious battery rattle even when backed off just a fraction - to a point where one would consider a safe lock-out. Backing off to a point where there is no battery rattle one can press the head in to turn on the light without twisting.
Overall this is a neat little light - surprisingly bright but very versatile in having the lower levels - especially having the sequence of low-medium-high -
I particularly like this since this allows one to turn on the light for closer hand-held tasks without dazzling, and if a brighter level is needed - comes with a mere quick off-on twist - but on my sample it has to be pretty quick......
NOTE: the ReVO is called more fully a Preon ReVO so it is found under the Preon grouping at 4Sevens.com
