desk lamp stopped working... stars?

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  • eccerr0r
    Solder Sloth
    • Nov 2012
    • 8680
    • USA
    #21
    Re: desk lamp stopped working... stars?

    Actually changing the current is easy for me.
    It's opening the stupid plastic welded-sealed PSU that's the hard part. :-(

      Comment

      • stj
        Great Sage 齊天大聖
        • Dec 2009
        • 30952
        • Albion
        #22
        Re: desk lamp stopped working... stars?

        i squeeze cases in a vice - they usually crack along the weld

          Comment

          • eccerr0r
            Solder Sloth
            • Nov 2012
            • 8680
            • USA
            #23
            Re: desk lamp stopped working... stars?

            Figured out how to open... silly screw behind label.

            Now... this PSU is awful... very inflexible CC. Seems like it's CP (constant power) and not really CC.

            Now I wonder, how long will a 1W LED last if I drive it with this PSU that I think will dump 2W into it with the easiest mod I can think of... else I'll have to think about how to incorporate multiple LEDs without a heatsink as I can't use the existing aluminum star with two LEDs...

            ---

            Oh, nevermind, came up with a better solution, can drop down to 1W. This might end up in the worthless repairs thread, and might also qualify for ghetto mods
            Last edited by eccerr0r; 08-04-2021, 08:40 PM.

              Comment

              • eccerr0r
                Solder Sloth
                • Nov 2012
                • 8680
                • USA
                #24
                Re: desk lamp stopped working... stars?

                Failed.

                PSU is cycling now and the LED is blinking Bad caps...? Hmm...

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