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What power adapter is best for 300x WS2811 LEDs on a t1000S controller?

Discussion in 'LEDs and Optoelectronics' started by Pretzelzzz, Dec 3, 2016.

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  1. Pretzelzzz

    Pretzelzzz

    11
    0
    Oct 9, 2016
    Hi all,

    I have a t1000s controller:
    http://www.kutop.com/program/T_1000S_SD_card_program_manual.pdf

    and 300x WS2811 LED pixels:
    http://www.ebay.co.uk/itm/like/DC-5...18372&clkid=891682632273770700&_qi=RTM2063741

    I've read that power draw of one pixel when on full, can be about 50ma/pixel. So presumably I need a 5v power adapter capable of 50x300ma = 15000ma?

    I do have another go-to power adapter which I use for a couple of led lights. It's a cheap multivoltage plug at 300ma - worked ok for some light patterns, but presumably would be lost if the patterns required more energy. I've had a few of these adapters die on me years ago, after a while when lots of lights were connected to them. Is this because the draw exceeded 300ma and it overheated?

    I also have a 12v 5amp power adapter I use with a 5050 rgb strip. I connected this to the 7.5-24v socket on the controller, and output from the 5v socket on the controller to the beginning of the 300 WS2811 LEDs. But I had some really strange results, so might have been doing something wrong in that setup.

    What would be most suitable? Many thanks!
     
  2. oz93666

    oz93666

    38
    1
    Dec 7, 2014
  3. Audioguru

    Audioguru

    2,833
    634
    Sep 24, 2016
    I see that ledstrips8.com has strips of RGB LEDs that have a WS2812B IC built into each LED. The WS2811 was an IC that was external to the LEDs. The WS2812B is improved and can address and control each LED individually..

    The maximum length is 4 meters (60 LEDs) but they say that longer strips are now available by using a different controller type.
     
  4. Pretzelzzz

    Pretzelzzz

    11
    0
    Oct 9, 2016
    Do you think if I use my 300ma adapter, I will burn it out? It worked fine when used for 5 minutes. Would I need to check if the plug is getting hot? And the advantage with these lights is I can programme the light sequence on the computer, put the presets on a memory stick and they are read by the controller. So I can create some really interesting custom effects quite easily.
     
  5. Audioguru

    Audioguru

    2,833
    634
    Sep 24, 2016
    The current used by the LEDs depends if all 3 colors are lighted (lit?) and how bright they are.
    An overloaded AC/DC adapter will burn out if the continuous current is much higher than its rating.

    I looked in Google for WS2811 LED strips and found many manufacturers. Which manufacturer made yours?
     
  6. Pretzelzzz

    Pretzelzzz

    11
    0
    Oct 9, 2016
  7. Audioguru

    Audioguru

    2,833
    634
    Sep 24, 2016
    Without any detailed spec's you do not know how much current that one LED string (not LED strip) will pass so we must assume only one string of 50 LEDs. We also assume 60mA per LED when all 3 colors are at full brightness.

    I have never seen LEDs packaged each with a full size controller IC on a little pcb before. Modern LED strips have the controller IC as a tiny invisible chip inside the LED.

    What is 12mm? I hope each LED is not half-inch diameter, maybe it is the length?
     
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