What type of Cree XR-E in Coleman light

JohnR66 · Jul 17, 2008

I bought a Coleman Max 3-AAA cell flashlight claiming 115 lumens at WalMart. The XR-E LED in this light is different than any other I have. First only the chip has yellow phosphor. The rectangle pad below the chip with two bond wires is a metallic silver color and the circular solder pad is a dull silver color (in the others, it is all covered in yellow phosphor). There are 4 bond wires.

The light is bright, but not as bright as my others as it is probably under driven to give the 3 AAA some runtime.

Thanks all...

jake25 · Jul 17, 2008

usually in 3xAAA lights, it is direct drive so it is usually driven to the max given lower runtime

the emitter is probably a P4, the scale is goes. P4, Q2, Q4, Q5, R2 , R2 being the newest on the market. Q5 being the more current popular.

Marduke · Jul 17, 2008

It's a silver core XR-E, assembled in China. Yellow (phosphor) core are assembled in North Carolina. Assuming ColeMan is specing wide bins, it's probably a Q2-Q4 bin statistically.

Gunner12 · Jul 17, 2008

I remember seeing 4 bond wires on P4 bins, so I could be a P4 bin.

The "Core" only tells you where the LED was made.

But just having Cree available to average customers is pretty good already.

yellow · Jul 18, 2008

yellow die with silver surrounding: Chinese made Cree
number of wires: no effect on what bin whatsoever (all have 4 now)
actual bin: almost no huge effect at all
current: extremely more effect than bin
tint: also effect on estimated brightness

try to even current from batts (better current to led) up, then compare lights.
Makes no sense before
(f.e. I have an XR-E P4 @ 1 A which smokes the Q5-light, as the 2nd one runs on much lesser current)

What type of Cree XR-E in Coleman light

JohnR66

Flashlight Enthusiast

jake25

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Marduke

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Gunner12

Flashaholic

yellow

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