Very good wiring , but this method will make some time short circuit due to water moisture ....like leakage . Better use separate switches and lamp holder for each phase. Agriculture place mostly wet and who is going to operate the switch his hand mostly of the time wet .... Some non brand switch also terminal to terminal resistance very low. So better safe way separate switch and lamp holder best and safe.
Good Morning Sir,I am chatting from Lagos, Nigeria What is the name of the used in this video ? How can I get it Sir ,pls treat as urgent, Tank you n God bless