Distinguishing Luxeons

xdanx

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Feb 11, 2006
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Palmdale, CA
I just got an Orb Raw and can't tell if it is a 1W or a 3W. How can I tell the difference? Are 3W's bigger?
 

schiesz

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I don't know of any way to tell the difference between a Lux I and III. If the drive levels between those two orbs are different, you should be able to tell by measuring the draw, but I don't have an orb and am not sure how it goes togather, so it might be tough to measure.

schiesz
 

wasBlinded

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The LuxeonI and LuxeonIII are probably exactly the same animal, just classified (or binned) at differing currents.
 

evan9162

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If it's on a star board, the Lux III will be on a thick, two-part (1/16" PCB on 1/16" aluminium) star board and have wide power leads. The Lux I will be on a 1/16" total thickness star board and will have thin power leads.

If it's just the bare emitter, there's no way to tell.
 

Jay R

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Turn it on. If it lasts 10 mins and get quite hot, it's a 3watt. If it lasts 30 mins and gets a bit warm, it's a 1watt.
 

TinderBox (UK)

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hello

the luxeon III star is thicker than an luxeon I, also the legs on the luxeon III emitter are thicker than the luxeon I`s legs.

see the picture.

The picture is from another CPF post.

starIII.jpg
 

schiesz

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So the lux is mounted on a star in the Orb Raw? I didn't think there was room for it in there...

schiesz
 

evan9162

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That's a lux III that's been removed from the star board.

That, or the manufacturer of the orb raw is getting Lux IIIs with thick power leads as a special order from Lumileds.
 
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