high power Led

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high power Led

Post  beauwatt on Sun Oct 10, 2010 6:26 pm

I know there are some newer high power Led's on the market. Im fixing to change the led's on my nozzle (not enough light). Does anyone have any idea's where to buy? Im using a 12Vdc computer power supply to power these. I hear they have 10 watt ones but havent found any in RGB. any ideas or links? thanks in Advance.

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Re: high power Led

Post  liteglow on Mon Oct 11, 2010 8:13 am

The luxeon 3W and 5W will give you much light Smile

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Re: high power Led

Post  John on Tue Oct 12, 2010 1:59 pm

I think this is the one that someone used. It's the one that I would like to use when I get around to it.

http://www.mouser.com/ProductDetail/LedEngin/LZC-80MC40/?qs=sGAEpiMZZMvhYeUvBGikDG30hqEYoP%2fu
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Re: high power Led

Post  beauwatt on Thu Oct 14, 2010 7:39 am

can I use this driver
http://www.dealextreme.com/details.dx/sku.42830

on this led.. one driver per color right?
http://www.mouser.com/ProductDetail/LedEngin/LZC-A0MD40/?qs=sGAEpiMZZMsgllGlynFdfk5tzIkejulNDyqWQb2338M%3d

Iwill need a resistor fot the 7v ones? or voltage doent matter only current.
should I use a 1000ma driver?

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Re: high power Led

Post  John on Thu Oct 14, 2010 8:07 am

It really depends on how you are hooking this up. You will need 4 because with one you would only be able to supply 9W of power, and your LED need 40W.

This will work but it won't use the LED to it's fullest potential. On page 4 of your datasheet it shows your typical voltage for your leds. At 700mA Red is 7.0, Blue and White are 10.5, but Green is 12.6. The driver won't be able supply the voltage for the green. That just means your green won't be as bright as the others.

You are right about the voltage you only need to supply correct amount of voltage (or above). It's the current that matters. You CAN'T supply more current than the LED can handle. It will burn it up really quickly. I would look at the 1000mA ones. See if they can supply a voltage of 13.5+ (page 4 of your datasheet). If you can guarantee that you have the correct current, and have more than enough voltage you should be just fine.

The schematic to build your own LED driver isn't that complicated. I believe if you just want to supply the correct current all you will need is one resistor and a lm317 (or something like that is rated for the appropriate voltage/current levels).
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Re: high power Led

Post  beauwatt on Thu Oct 14, 2010 12:42 pm

Tahnks for you help John!

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