I have an led string with a multi function controller which supplies 240v dc to the string. There are three wires coming out of the MFC and then five between most of the LEDs The string has three section of around 130 LEDs in each section. Each section starts with two LEDs without a resistor and...
Hi,
I want to construct a new controller to replace the MFC which came with the light strings I am using - 500 leds. The lights run at mains voltage dc (directly after a bridge diode set).
The existing MFC has a couple of SCRs labelled PCR 406X. I can get these on ebay but they are quite...