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led driver for a 30w led i dont want to pay the 30 bucks for one, i need to know how to use it without the driver? Answered

do i need the led driver for a 30w led i dont want to pay the 30 bucks for one, i need to know how to use it without the driver?


heres the led


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=160418184744

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steveastrouk
steveastrouk

Answer 11 years ago

No, as I said, you need a 0.66 Ohm resistor.....or 30 USD

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antonbergjr
antonbergjr

Answer 11 years ago

i know but i dont know what resister to use for the led

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RavingMadStudios
RavingMadStudios

Answer 11 years ago

As Steve has already mentioned, the formula for calculating resistance is in Step 2 of the Instructable linked above. Good luck!

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antonbergjr
antonbergjr

Answer 11 years ago

i am having trouble can someone just post a link on ebay of a cheap one from china or somthing thanks?

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steveastrouk
steveastrouk

Answer 11 years ago

Why not try ? 
www.ebay.com

...making your own simple one would cost less than 5 USD.

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steveastrouk
steveastrouk

11 years ago

Use a resistor in Raving's link, around 1.22/1.8 or 0.66 Ohms

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antonbergjr
antonbergjr

Answer 11 years ago

i am having trouble can someone just post a link on ebay of a cheap one from china or somthing thanks?

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Fuzzy3D
Fuzzy3D

11 years ago

Do what I did with my 10w, dig through your adapters and find one that'll give you close to those specs right off the bat. Most importantly is not to go too far over the recommended current. And make sure you use a beefy heat sink WITH A FAN!