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Klaatu
04-15-2008, 02:49 PM
If you look at the Resistor page on the web site it says
The Green K2 is 1500ma however the Luxeon LED website says Its 700ma.

which is correct. I was thinking about picking up a buck puck but unsure which I need. Now while on the buck puck subject. Do they just keep the power constant or does it also make the LED brighter?

Thanks,

xl97
04-15-2008, 03:10 PM
I believe the pucks keep things constant.. which i guess could mean brigter.. since the LED will always get the correct juice.. and not fluxuate... but wait for a 'real' experienced member to answer.. ;)

Novastar
04-15-2008, 04:13 PM
NO.

This thread needs to be corrected immediately. :)

http://www.luxeonstar.com/item.php?id=1803&link_str=330::1433&partno=LXK2-PM14-U00

The Luxeon K2 Green is capable of 1500ma max continuous current. BUT THAT IS THE HIGH LUMINOUS FLUX ONE.

It's true that it can be confusing, but... we don't want to throw people off. The "crappier" LOW LUMINOUS FLUX K2 that is shown on a STAR base on the luxstar site:

http://www.luxeonstar.com/item.php?id=5540&link_str=1431&partno=5027-PM12

...is retarded for our purposes, since the maximum lumens would be about 75. Almost half of the high-flux K2 @ 1500ma.

Anyhow... easy mistake to make, but... DON'T be fooled by the differing models/bins/whatever. Just like there is:

LXK2-PM12-R00 (http://www.luxeonstar.com/item.php?id=1802&link_str=330::1433&partno=LXK2-PM12-R00) LXK2-PM12-R00 Luxeon K2 - Green, 45 Lumens @ 350mA

there is also:
LXK2-PM14-U00 (http://www.luxeonstar.com/item.php?id=1803&link_str=330::1433&partno=LXK2-PM14-U00) LXK2-PM14-U00 Luxeon K2 - Green, 100 Lumens @ 1000mA

And even THERE, you note that they state "100 lumens @ 1000ma". That makes sense. And 130 lumens @ 1500ma. :)

Klaatu
04-15-2008, 04:49 PM
So would something like this work out nicely with the K2?

http://www.dealextreme.com/details.dx/sku.4735

Novastar
04-15-2008, 06:41 PM
I've seen those kinds of things before, as Tim tested some out some months ago. I was never able to figure out what leads were what and how to bridge certain gaps (as we were supposed to take 350ma drivers and "turn them into" 1000ma drivers or whatever).

But--at a couple of bucks, it's worth a shot. I'm sure it's fine, especially if you don't have to do any bridging. Just connect + and -... and yer done. :)

Klaatu
04-15-2008, 07:08 PM
Yea I figured its only a couple of bucks to I went ahead and ordered them. I will give em a whirl and let yall know.