mh ballast, does hps bulb fit?

I have an insidesun 400 watt ballast, i just switched into flower and am going to buy a 400watt hps bulb, i was told it would work just wondering for a 2nd opinion

thanks
Cat

just had a look at there site and i found ur equip and it dosent day its a dual control so i wouldnt use a hps in it sorry

why?

it dosent contain a dual control ballast/igniter so it will either fry ya ballast or cause a fire

some have dual control's in for mh/hps but ur one hasnt

No, it wont. A mh bulb will work just fine in an hps setup, but a hps bulb wont work with mh setup.

yeah and if you look http://www.insidesun.com/8bc649aa21bf324db1dc5cc611f18fc6.item its only a mh that why im saying dont use a hps

thanks some one told me the complete opposite than dark, so if i had a hps ballast could i run both?

darkdestruction420 said:

No, it wont. A mh bulb will work just fine in an hps setup, but a hps bulb wont work with mh setup.

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i thought this was a myth?

But they actually do have the bulb you want CatsEyes420
Here it is
This is an expensive one http://www.specialty-lights.com/10010.html

you can run a hps/mh on a dual control ballast if it not dual its either runs mh or hps

yep, hps can run mh or hps or cmh(ceramic metal halide, which only works in an hps ballast) or h.o. (high output) blue spectrum added hps bulbs. Ultimately having tried both mh bulbs and cmh bulbs and normal hps bulbs and h.o. hps bulbs I prefer the h.o for all phases of growing. It does better than the rest in my experience. Cmh comes in second place. Also, A cmh bulb will not work in a switchable/dual ballast unless you find one that specifically says it can be used in an electronic/switchable ballast.

HankDank said:

i thought this was a myth?

But they actually do have the bulb you want CatsEyes420
Here it is
This is an expensive one http://www.specialty-lights.com/10010.html

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Nope, I too was skeptical when i heard it(why would people waste money on getting mh setups then? was my thought. which i later found out is because alot of people dont know about it ) but then some veteran growers on here who i really respected and knew their shit said they had done it for a long time w/o problems. So I decided to ask a few members who i knew were proffesional electricians and they confirmed it for me. Its a shame so many people buy mh ballasts not knowing.

an hps bulb will not work in a metal halide ballast unit as there is no igniter built in to the ballast, and a metal halide bulb has an igniter built in to it, the metal halide will work in the hps ballast as it does not matter if there are two igniters one in the metal halide bulb and one in the hps ballast. hope that helped.

"an hps will not work in a metal halide ballast unit "
"the hps will work in the metal halide ballast"
I'm gonna assume thats a typo of some sort?

darkdestruction420 said:

"an hps will not work in a metal halide ballast unit "
"the hps will work in the metal halide ballast"
I'm gonna assume thats a typo of some sort?

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your right, i edited it, i was rushing to cook fried breakfast. thanks.

Well this is quite interesting, i think im going to have to now order a MH for my HPS and see if it truely does work

So what it is then? everyone is just throwing out opinions can we get some actual proven facts, or some plausible explanations, so which bulb needs the ignitor?

CatEyes420 said:

So what it is then? everyone is just throwing out opinions can we get some actual proven facts, or some plausible explanations, so which bulb needs the ignitor?

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what? you asked "mh ballast, does hps bulb fit" We answered, what more do you want? we didnt give you opinions.

You could buy a digital ballast and it could run both.

CatEyes420 said:

thanks some one told me the complete opposite than dark, so if i had a hps ballast could i run both?

Click to expand...

darkdestruction420 said:

what? you asked "mh ballast, does hps bulb fit" We answered, what more do you want? we didnt give you opinions.

Click to expand...

actually i got every possible answer, yes no and maybe... you were the only one to back up your answer with actual proof or evidence... so what is my best bet, i dont have the money to buy another ballast, should i just go thru my whole grow with an mh or purchase a conversion bulb? what would happen if i just try out a hps? so the hps bulb is the one that needs an ignitor?

Thanks
Cat

I'd get the conversion bulb. putting a hps bulb in a mh ballast wont work as you are correct when you say the hps is the one that needs an ignitor which the metal halide system doesnt have.