ballasts - adding ignitor

So it looked as though it would be real easy to add an 'ignitor' to my metal halide ballast and make it capable of using HPS bulbs (the only difference between a metal halide ballast, and a hps ballast, is an ignitor).

Here is where I ran into an issue
the ignitor has 3 wires
2 of the wires goto the socket, and obviously those were easy to find
one of the wires is supposed to attach to the long side of the transformer. my transformer only has one wire coming out of the long side, that wire is going to the capacitor. In the diagrams that i saw @ on line pot dot org, there were two wires coming out of the long side of the transformer. Can anyone help me out here? How can I get this working, I tried splicing the wire that's going to the cap' and it appears to not be working (at least I plugged it in for 30 seconds and nothing happend (no fires either tho so thats good!) Does it take more then a few minutes for an hps bulb to arc or should it be right away - the metal halides arc'd right away.. any help would be appreciated, I been using the metal halide's wanted to try to switch to hps. buying all new ballasts is not an option financially so please don't say 'invest in some better equipment'

I did notice the capacitor seems to be a little different the metal halide cap is 24u the HPS one's seem to be 52u (??) does this make a difference i'm wondering..
 

burley

Member
well, i'm dealin w/the exact same issue with only 1 wire exiting the "long" side of my 400w transformer, the initial post was logged so long ago, i'm not seeing any responses or solutions to your problem. I could use some ideas on this,i just hate to buy somethin that I've already got, ya know?
thanks for any wisdom on this, Burley (grower)
 

209 Cali closet grower

Well-Known Member
So it looked as though it would be real easy to add an 'ignitor' to my metal halide ballast and make it capable of using HPS bulbs (the only difference between a metal halide ballast, and a hps ballast, is an ignitor).

Here is where I ran into an issue
the ignitor has 3 wires
2 of the wires goto the socket, and obviously those were easy to find
one of the wires is supposed to attach to the long side of the transformer. my transformer only has one wire coming out of the long side, that wire is going to the capacitor. In the diagrams that i saw @ on line pot dot org, there were two wires coming out of the long side of the transformer. Can anyone help me out here? How can I get this working, I tried splicing the wire that's going to the cap' and it appears to not be working (at least I plugged it in for 30 seconds and nothing happend (no fires either tho so thats good!) Does it take more then a few minutes for an hps bulb to arc or should it be right away - the metal halides arc'd right away.. any help would be appreciated, I been using the metal halide's wanted to try to switch to hps. buying all new ballasts is not an option financially so please don't say 'invest in some better equipment'

I did notice the capacitor seems to be a little different the metal halide cap is 24u the HPS one's seem to be 52u (??) does this make a difference i'm wondering..
The mh to hps, will not work to well for full power?I would not do that.

hps to mh, yes, but mh to hps, no.The best way, is to use a conversing bulb to go hps.If you just have a mh ballast.
 

F A B

New Member
The mh to hps, will not work to well for full power?I would not do that.

hps to mh, yes, but mh to hps, no.The best way, is to use a conversing bulb to go hps.If you just have a mh ballast.
listen to this guy
u need to buy a conversion bulb
i could tell u how to wire what u got but im not cuz i dont know if it is safe and wont give that advice unless i tested it and checked output
but i do have good news i know a online company that last time i checked had plantmax conv bulb for $28 and free shipping
guessing u have 400w ? cuz u have a 24 cap
let me go check that site
 
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