This is an electrical system that can be controlled in one place ie box panel and the system I use on the board work using 4 grub each grub has fuse to keep the occurrence of short circuit .
For the first group that is the function of two places turn on and off, the second group can operate anywhere that is 3 place of operation, third group mengunnakan light sensor when dark then lamp will turn on automatically and lastly, group 4 use timer that where lamp will be lit up sesui settigan time
