Yes, I have already done a 4Sevens Quark AA Comparison Review -
but that was the original version with the Cree XP-E R2 - recently 4Sevens upgraded the Quark series using the Cree XP-G R5 - this ups the maximum output from the original 90 lumens to 109 lumens in the R5 edition for the single AA light.
Is there any noticeable increase in brightness?
Sizes
Heads -
vs. 4Sevens Quark AA R2 edition - both max and NiMH
answer: yes - noticeably, when compared side-by-side.
well the upgrade does seem worthwhile - although I note the XP-G R5 seems to be bluer/cooler in tint - this of course could well be due to simple sample variations - but I notice that the more the output is pushed the cooler the light - at least in the earlier batches..... (but that could just be me).
The Quark's nearest rivals are the Fenix series - the LD10 in this case - I do not have an actual LD10 at hand - but do have the PD20 head and L1D body - this basically makes up a Frankenstein "LD10" - since the heads on the LD10, LD20 and PD20 are the same/interchangeable - last time the Fenix was brighter than the R2 Quark AA - how does it fare this time in its R5 form?
vs. Fenix LD10 - Q5 both on Max ("Turbo") and NiMH -
I would say the R5 Quark AA is brighter - I do know the beam intensities seem in the same ball park - but the Quark has a noticeably wider beam and its hotspot is brighter and larger......
But what is going on? the Fenix LD10 is rated at 120 lumens but the Quark AA-R5 is only 109 lumens.
Well 4Sevens explains it - 4Sevens flashlights are rated actual OTF (Out The Front) lumens whereas other manufacturers often just quote the spec'd lumens at whatever drive current they are using - so those are potenial LED lumens - and there are always some losses due to the reflector and front glass etc.....
Best is to read the blurb on the 4Sevens website about OTF lumens
but that was the original version with the Cree XP-E R2 - recently 4Sevens upgraded the Quark series using the Cree XP-G R5 - this ups the maximum output from the original 90 lumens to 109 lumens in the R5 edition for the single AA light.
Is there any noticeable increase in brightness?
Sizes
Heads -
vs. 4Sevens Quark AA R2 edition - both max and NiMH
answer: yes - noticeably, when compared side-by-side.
well the upgrade does seem worthwhile - although I note the XP-G R5 seems to be bluer/cooler in tint - this of course could well be due to simple sample variations - but I notice that the more the output is pushed the cooler the light - at least in the earlier batches..... (but that could just be me).
The Quark's nearest rivals are the Fenix series - the LD10 in this case - I do not have an actual LD10 at hand - but do have the PD20 head and L1D body - this basically makes up a Frankenstein "LD10" - since the heads on the LD10, LD20 and PD20 are the same/interchangeable - last time the Fenix was brighter than the R2 Quark AA - how does it fare this time in its R5 form?
vs. Fenix LD10 - Q5 both on Max ("Turbo") and NiMH -
I would say the R5 Quark AA is brighter - I do know the beam intensities seem in the same ball park - but the Quark has a noticeably wider beam and its hotspot is brighter and larger......
But what is going on? the Fenix LD10 is rated at 120 lumens but the Quark AA-R5 is only 109 lumens.
Well 4Sevens explains it - 4Sevens flashlights are rated actual OTF (Out The Front) lumens whereas other manufacturers often just quote the spec'd lumens at whatever drive current they are using - so those are potenial LED lumens - and there are always some losses due to the reflector and front glass etc.....
Best is to read the blurb on the 4Sevens website about OTF lumens
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