here is a 4 light flip that uses dayton relays from grainger.com I use it on 1000 watt lights and have never had a problem. The relays come in 2 pieces the relay and the base the relay is model #5yr16 and the base is 2a582m I had this diagram made up for someone else a while back hope it helps. I had to down size it alot if anyone wants a better copy pm me and I will get it to you in a bigger size
u.g.u Reviewed by u.g.u on . 2 room flipflop relay Hello all, new to this site it is full of great peeps and knowledge. I am a hardcore Do It Yourselfer. I am asking this community for some help. I am interested in building a 2 room 4 ballast 8 lamp flipflop relay system. These are super expensive from hydro shops like $400 just for the one I would like to build. I know it works with relays But they need to be strong enough to flip 1000 watt HPS systems. someone must have one and could possibly post pics then we could do a how to on building Rating: 5