Cree Q bin ?

davidefromitaly

Enlightened
Joined
May 16, 2004
Messages
635
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Concept said:
Enquiring minds want to know?

I am hoping sooner rather than later.


btw don't expect big imporvements cause they are tight bins:

if for example you have a P3 flashlight with 3000 lux (55 meters of throw) and 150 lm of output, if you upgrade the led you obtain:

P4: 3272 lux (57 meters) 164 lumens
Q2: 3548 lux (59 meters) 177 lumens
Q3: 3812 lux (62 meters) 191 lumens

i doub that you can see the difference at naked eyes
 
Last edited:

CM

Flashlight Enthusiast
Joined
Sep 11, 2002
Messages
3,454
Location
Mesa, AZ
davidefromitaly said:
btw don't expect big imporvements cause they are tight bins ... i doubt that you can do the difference at naked eyes

Agree. These are not like Lumiled bins which have 30% range within a given bin. With the Cree, you need to take several steps in bin for it to be meaningful--each bin can range no more than 10%. For example, if you have a P2, then a P4 is a meaningful step. From P4, going to a Q3. Even with these type of changes, your unaided eye will not be able to tell a difference. An IS or a lightmeter are the only thing that can discern such increases. P2's are easily had so the next logical step up is a P4.
 
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