I just got 27 k2's for 38.00

[Axkiker]

Im pumped... I just won an auction for 27 k2's and only paid 38.00.

auction included.

Part NumberQty.LXK2-PW14-U0017LXK2-PW12-S005LXK2=PW14-T005

I was lookin for a reason to experiment with these. Looks like I found it.

guy who has them is also in the US. A great plus in my book

 

[jasonsmaglites]

Im pumped... I just won an auction for 27 k2's and only paid 38.00.

auction included.

Part NumberQty.LXK2-PW14-U0017LXK2-PW12-S005LXK2=PW14-T005

I was lookin for a reason to experiment with these. Looks like I found it.

guy who has them is also in the US. A great plus in my book

for some reason im not a fan of the k2's, but thats one heck of a find!

 

[Axkiker]

Hey out of curriosity why do you not like the k2s. I havent recieved mine yet so I havent been able to experiment.

 

[Blindasabat]

Do you know if they are TFFC? Probably not at that price, but a good find anyway. K2's can be driven hard so they are good for larger flashlights with big batteries. I have an early K2 Mag drop-in - it is nice and bright and can tolerate getting hot.

 

[HarryN]

Just for fun, I will try to decode that bin and see if I still remember how to do it. Might be questionable - maybe someone can double check it.

LXK2-PW14-U0017

LXK2
L = Lumileds
X = emitter
K2 = K2

- PW14
P = lambertian pattern
W = white
1 = color designation
4 = tested at 1000 ma

-U0017
U - First digit is usually an undesignated digit, but perhaps this is a U bin - 220 - 260 Lumens @ 1000ma - pretty respectable.
0017 - still working on it


Is the 0017 the number of parts ?

I used to think that a U bin Lumileds part was more like 100 Lumens, similar to the AB21 data sheet from 2006, but now that I look at the K2 data sheet, it looks more like 200 lumens. Perhaps I am confused.

 

[blasterman]

I just won an auction for 27 k2's and only paid 38.00.

Cool. Now you can daisy chain them and never need a space heater :naughty:

Just remember to use generous heat sinks and be prepared to need a lot current.

 

[Axkiker]

Cool. Now you can daisy chain them and never need a space heater :naughty:

Just remember to use generous heat sinks and be prepared to need a lot current.

are these known for running hot or something

 

[err0r]

are these known for running hot or something

Not really - they're known for being able to be run hot. Thus people do so.

At a given drive level they run no hotter than any other LED.

 

[Lightingguy321]

-U0017
U - First digit is usually an undesignated digit, but perhaps this is a U bin - 220 - 260 Lumens @ 1000ma - pretty respectable.
0017 - still working on it


Is the 0017 the number of parts ?

The coding is more like this:
LXK2-PW14-U000 (there shouldn't be any digits other than 0s in the last 2 places)

U- is the the luminous flux bin. (max of about 113lumens at 1.5Amps)

I think the ebay seller accidentally integrated the quantity into the bin code.

PW14-Pure (cool) white emitters driven at test current of 1000mA

LXK2- refers to luxeon K2 emitters

I can't remember which digit it was but I believe the 1 in PW14 tells you its a lambertian emitter radiation pattern.
-------------------------------------------------------------------------
The K2 TFFC bin codes go like this

LXK2-PWC4-0200, LXK2-PWC4-0220, LXK2-PWC4-0240, LXK2-PWC4-0160, and LXK2-PWC4-0180, the last three digits refer to the approximate luminous flux at a 1 Amp drive.

The final note: The old U bin flux bin is referenced for the old K2 and the Luxeon I,III, and V. It has a margin between 87-113 lumens. The new U bin for K2 TFFC and rebel emitters ONLY refers to an output at a given drive current between 220 and 240 lumens. At this point, lumileds has yet to release the 0240 and 0220 Luxeon K2 TFFC emitters. The emitters you got from that Auction are the older emitters (LXHL-PW14-U000 is the correct bin code)

 

[Axkiker]

here is what was posted on his add within ebay



LXK2-PW14-U00 qty 17
LXK2-PW12-S00 qty 5
LXK2-PW14-T00 qty 5


here is the website which breaks down bin and lumen output

http://www.philipslumileds.com/pdfs/DS51.pdf


they should be in tomorrow... So looks like I can play all weekend

 

[ledstein]

For a fast look at bin types go here:

http://www.philipslumileds.com/products/luxeon/luxeonK2

Actually the Lumileds website should always be the place where you want to get detailed info about K2 or Rebel. Its the producer website....