Ultra cheap low powered drivers

Discussion in 'Drivers (Power Supplies)' started by LEDBuilder.org, Jan 5, 2017.

  1. LEDBuilder.org

    LEDBuilder.org Administrator

  2. LEDBuilder.org

    LEDBuilder.org Administrator

  3. aruzinsky

    aruzinsky Member

    At $0.99 each, postpaid, these kind of drivers are good:

    MR16 1x1w 1x3w 3x1w 3x2w 3x3w 4x1w DC 12V dc LED Driver For LED Light Lamp Bulb | eBay

    But, and this is a BIG BUT, when operating at 12VDC input, you need to bypass the diode bridge to get 11 VDC output because the voltage drop across the diode bridge is approximately 1.2 V. This bypass requires careful cutting and soldering which is difficult for me because I have shaky hands. If you operate with less than 3 blue or white LEDs or less than 4 red LEDs, this bypass is unnecessary.
    LEDBuilder.org likes this.