Hello Zandor I am not sure what you mean. with these flips you are changing over to a cold bulb so no need for a cool down period. These units are sold at hydro retailers 1 ballast can run 2 rooms all they do is switch the hot side of the circuit between the bulbs. Again I was hopeing someone might have one and be able to share pictures or maybe someone has built there own. From what I know there is no time delay between the switching but I dont really know I have heard these unit use DPDT Relay's I just dont know what kind. Anyways thanks for all that are interested and your replys I have searched and searched and cant find a how to on these things. I asked someone on another site who was selling them if they would share what type of relay and the person got all pissed and said he could not share that info because it hurts retailers. Well I know these relays cant be that expensive and I told the person that they are way over priced just as many grow supplies are. Oh well guess we will never know I would love to buy one open it up find out what makes it tick and return it.........
kushman45 Reviewed by kushman45 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