Michigan

IAm5toned said:

there all the same man...
the ballast core (big heavy transformer) is nothing but a current limiting device.

the only difference between a MH ballast and a HPS ballast is the way the lamp starts. most MH lamps are probe start. this means they do not require an ignitor. HPS lamps are pulse start, they do require an ignitor.
the cap for a probe start lamp is different than the cap for a pulse start lamp, thats why there are two seperate cap's in the switchable ballast.
look closely at your switchable ballast. there is a wire, that comes off of the ballast core, and goes to the switch. at the switch, there will be 2 wires, one will go to the ignitor cap, the other goes to the cap. all this switch does is direct the current coming from the ballast core to either a) the MH cap, or b) the HPS cap and ignitor combo.... very simple design. the switch you need is called a form c switch, or also a SPDT (single pole, double throw) switch. so basically your going to need a 1000w ballast core, and its correctly matched hps cap and ignitor combo, a SPDT form C switch, a correctly sized 1000w MH cap, and some wire and a mogul base light socket to make it work. of course you should also grab a back board or enclosure to make it pretty when your done, but thats all in the eye of the beholder.

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Kruzty said:

Ferget the 400's.... Ok to clone with and maybe veg but nothen and I mean nothen beats a 1000hps. Cost of grow per watt will go way down as they reach all of the plant makeing no popcorn buds. 1000 watter will go down 3 feet where a 400 wont. You may get the tops but I get ALL of the plant. I run several 1kers and flat blast the snot out of them. Proof is in da pudding,,, just look at my atvar pic.... Ya wont get those with 400's.................................
This is one thing ya dont want to be cheap on. You'll get what ya pay for.........

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