One lamp or load control from four places.একটি বাতি বা লোডকে চার জায়গা থেকে নিয়ন্ত্রণ।

In this video, we have discussed in detail how to control a load from four places and what to do to control it from as many places as you want, more than four. I hope you will understand it very easily and you will not have any problem. Control 1 load from 2 places -    • One lamp/load control from two places.Two ...   Control 1 load from 3 places -    • One Lamp/load control from three places.In...