DealExtreme: $17.68 Cree XLamp MC-E K0-WG 370~700-Lumen LED Emitter on 20mm Star Board (MCE-WG-K0)

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Cree XLamp MC-E K0-WG 370~700-Lumen LED Emitter on 20mm Star Board (MCE-WG-K0)

Price: $17.68

SKU	16145
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- Genuine Cree XLamp MCE-WG-K0 LED emitter (bin/label guide)

- 370~700 lumens rated brightness

- Driving voltage/current: 3.2V~3.5V, 350mA~700mA

- Parallel star board/emitter connection design

- Official Cree product page: http://www.cree.com/products/xlamp_mce.asp

To enable volume discounts on this site, use coupon code: BULKRATE during checkout. You will see a discount applied at the bottom of the shopping cart. Competitive pricing is available. Contact us for details.

Quantity	3+ units	5+ units	10+ units
Rate	$15.98 shipped	$15.88 shipped	$15.78 shipped

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(9 votes, submit rating)

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Showing latest 4 entries. Click here to read all 7 reviews.

Displaying reviews posted by certified DX gadget owners first, followed by all other posted reviews.
cool

Posted by phongtrang on 1/28/2009
Involvement: Expert (understands the inner workings) - Ownership: more than 1 month

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Pros: pretty bright
I made a household bathroom bulb with this and it works well inside a white batroom diffuser. Drove it at 1A Vfw is 3.9V glue to a cpu heatsink. I just use old transformer with resistor in series to drive it.
 
Cons: no cons other than it gets pretty warm. I'm using an old pentium M cpu heatsink to release the heat. It seems warm to the touch.
 
Other Thoughts: This is all connected in series so my circuit is pretty simple. Transformer is 16V hook up with a 0.5 ohm resister in series with this. Will see how long it last.
 
Bottomline: Pretty cool for a household project. I would recommend to buy.

Nice price, un-sure of what your getting

Posted by bbgobie on 12/21/2008
Involvement: Expert (understands the inner workings) - Ownership: 1 week to 1 month

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Pros: Bright, price, nice board
 
Cons: Poor manufacturing, bad product description
 
Other Thoughts:  
Bottomline: I ordered mine early, when it finally arrived, the board was designed so each die was addressable which is great for testing.
The solder on the star was horrible, the joints were connected to each other, and had to be resoldered to truely have individually accessible dies.
If you want a parallel setup, its easy enough to take a soldering iron and just join up all the joints on each side.
 
					

2nd batch not as good as 1st

Posted by techjunkie on 12/1/2008
Involvement: Expert (understands the inner workings) - Ownership: 1 day to 1 week

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Pros: Bright and powerful.  Pretty straightforward replacement for CREE XR-E, with small challenges to focusing and power supply.
 
Cons: 2nd set of boards I received were serial, not parallel.  Had to scratch trace routes on board and solder together leads on each side of LED to convert to parallel.
2nd set had VERY green tint compared to nice white tint of 1st set.  I don't think the LEDs I received in my second batch were K-bin or WG tint. : (
 
Other Thoughts: Maybe I'm too rough on mine during installation, but 2 out of 3 of my domes fell off.  Emitter still works, but hotspot is smaller.
 
Bottomline: powerfull emitter, fun for projects, but frustratingly fragilie at 4x the cost of XRE stars.  A bit of a gamble quality/brightness/tint-wise.

Genuine product. Not parallel board.

Posted by jkhobson on 11/29/2008
Involvement: Expert (understands the inner workings) - Ownership: 1 day to 1 week

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Pros: Nice product. Mounted well to serial board although advirtised as parallel. Beautiful unit, if wired correctly it should shadow the P7.
 
Cons: Wrong format for me. Had to manipulate many things to accomodate this item. This is quite an inconvenience considering the time it takes to recieve from DX.
 
Other Thoughts: I cant think of any. This would be a great product if i didnt have to solder to the led instead of the board. Ill order naked units and boards from now on.
 
Bottomline: Good product but DX is confused as to how these are terminated. Be ready for whatever shows up.

Specifications

Dimensions: 0.81 in x 0.81 in x 0.26 in
Weight: 0.46 oz