good, friends recently I dedicate myself to repair energy saving light bulbs and sometimes I have a case that I have not been able to repair and that is when I check that the capacitors are inflated I replace them with one of igaul mf and igyal voltage and one of them it is heated and on occasions until a clear smoke has been exploded, this is what, whenever I replace a capacitor, I do it with the correct polarity because that will be happening. The next question is that there are cases that the transistors are damaged and I do not have a transistor of the same model could put another of the same model for example if I have a transistor model slt-13001 could put an h18bd-13003 or yes-6823 of course if they are NPN ? I hope you can help me THANK YOU

The solution to my problem was to replace the transistors and a god that was damaged

Hello guys. I am a student and I must design a module or board for the repair and maintenance of energy saving light bulbs. I need some help with the parts or elements that this board should carry.