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Thread: 9 Watt Cree High-Efficiency Light

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  1. #1
    Flashaholic
    Join Date
    Dec 2002
    Location
    Dallas, TX
    Posts
    313

    Default 9 Watt Cree High-Efficiency Light

    It may be ugly....., but it is very efficient.

    9 Watts on my wattmeter. Three Cree Q2's running @ 700 ma.

    95% efficient switching power supply.



    Easily outperforms Compact Fl. of twice the wattage in down-throw applications.

    Color still in the 6000° K range.

    Now back to design on my 7 Cree Q5 AC light.

    Larry Cobb
    Last edited by LEDite; 08-08-2007 at 11:14 PM.
    UV Lights, Panasonic 3400mah #18650 cells available

  2. #2

    Default Re: 9 Watt Cree High-Efficiency Light

    Hi, what is this power supply ? Thanks

  3. #3
    Flashaholic
    Join Date
    Dec 2002
    Location
    Dallas, TX
    Posts
    313

    Default Re: 9 Watt Cree High-Efficiency Light

    DSE;

    The switching power supply is one of about 20 I tested for efficiency at at 8.5 watts output power.

    It was a 12 watt max design.

    Larry
    UV Lights, Panasonic 3400mah #18650 cells available

  4. #4

    Default Re: 9 Watt Cree High-Efficiency Light

    Ledite, where are you found this power supply ? Thanks

  5. #5

    Default Re: 9 Watt Cree High-Efficiency Light

    It is unusually ugly, yet, somehow... it's beautiful too. Any idea how many lumens you get out of those nine watts? Is that radiator big enough? Do you know how hot it runs?

    /trudges back to plain old stock CFL's...

  6. #6
    Unenlightened
    Join Date
    Jul 2007
    Location
    Earth > Central Europe > Czech Republic
    Posts
    7

    Default Re: 9 Watt Cree High-Efficiency Light

    Any schematic of used power supply? Or where you get it from?

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