Guys dont buy the cheap relays if you plan some advanced projects with heavy use of relays. Ive spend lots of time on working on the normal blue ones and i recently bought 8 SSR relays and they work perfect.
The blue ones cost almost the same and they tend to fail a lot. The (ssr) Solid State Relays are much better. they work for much longer periods and also almost never fail.
In fact im using only 230 volts. growlights, and foggers as well as 18v fan for pushing the stream of fog into the roots. the relays are connected to plugs so i can change and disconnect everything whenever i want.
i used to grow weed i this setup for medicinal purposes but now i grow only lettuce, and basil etc.
atm, im having a problem with changing the timetrigger. even when i reset it it doesnt work when changing settings. But when it finally starts it works well.
im also fighting with humidity problems at the top of the plants. :P