Heatsink

Discussion in 'Anything DIY Related' started by Bluemotion, 26 Feb 2012.

  1. Bluemotion

    Bluemotion

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    Hi everyone, does anyone know where I could possibly get Heatsinks for an LED light preferibly in gauteng? Was thinking about something like 30cm by 20cm. Something like that. Any help would be appreciated.
     
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  3. butcherman

    butcherman Moderator MASA Contributor

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    Last edited by a moderator: 26 Nov 2015
  4. raytone

    raytone Raytone

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  5. Bluemotion

    Bluemotion Thread Starter

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    PM'd manic. There must be some companies that sell in SA. Hopefully I can get one
     
  6. zak

    zak

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    Try Communica in midrand..
     
  7. Bluemotion

    Bluemotion Thread Starter

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    Thanks will email them today
     
  8. Clownfish9906

    Clownfish9906

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    Hey Bluemotion - did you come right?
     
  9. Bluemotion

    Bluemotion Thread Starter

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    Hi not yet been so busy with my studies haven't had time to contact anyone, hopefully in july I will get some time to work on things. Still deciding how many LED's and the size heatsink needed.
    :)
     
  10. Mc

    Mc

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    Ebay.;)
     
  11. Tremayn

    Tremayn

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    apparently the price of heat sinks has increased... why not just use u channel?
     
  12. Manic

    Manic Moderator

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    U-channel is fine for most lps and softy builds because the required led density is relatively low and you probably wont run the leds at 100%. When you go for a high power build then U-channel will not suffice as the led density is higher and the heats dissipation needs increase exponentially.

    You might get away with the U-channel now but you will be running the leds at a higher junction temperature which decreases the leds life at a logarithmic rate. This defeats the point of leds as they will probably only work for a year or two and not the 10 000 hour life span that will work for with proper heat sinks.

    The other thing with U-channel is that you need to run more fans to keep the channel cool. This once again defeats the point of leds as each fan is around 20 - 30W, which neglects the power saving you achieve by using leds.
     
  13. Bluemotion

    Bluemotion Thread Starter

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    I think it is best to get a proper heatsink. considering the amount one invests in the LED's
     
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