HPS/MH light

I bought a 250W HPS/MH light back in june. Im just now getting around to setting up my room. So last night I got my light out and tried it out, the HPS bulb worked fine but the MH bulb did nothing. Do I need to do anything when switching bulbs or should it just plug in and go. Here is a link to my light.

http://www.hidhut.com/catalog/250w-hpsmh-digital-ballast-bulb-and-glass-tube-reflector-combo-p-2297.html

It should just plug in and go.Do you have digital ballast that has a switch from hps to mh?Or is the mh bulb a conversion to work on your hps system?

if iy does not have a switch then u need a mh conversion bulb witch really isnt worth using, it would be better to just veg under the hps

try switching the volts maybe that's it. i don't know though I've never owned a convertible ballast.

Edit : I just googled it and they will have a switch if it is a switchable ballast. Try emailing HID Hut

mcpurple said:

if iy does not have a switch then u need a mh conversion bulb witch really isnt worth using, it would be better to just veg under the hps

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Not true...I recently got a MH conversion bulb and it works far better in veg than my EYE Hotilux HPS did

I just know its a digital ballast, and both bulbs came with it. I looked all over for a switch but couldn't find one. Didn't know if there might be a switch inside, or if the MH bulb was just bad. And now I have a second question. Can u tell if the bulb is burned out or not going to work just by looking at it?

oJUICEBOXo said:

Not true...I recently got a MH conversion bulb and it works far better in veg than my EYE Hotilux HPS did

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a conversion bulb does not put out as many lumans per watt as a MH or HPS. it still works well but IMO not as well

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Email hidhut you bulb should still be on warranty for another one.

mcpurple said:

a conversion bulb does not put out as many lumans per watt as a MH or HPS. it still works well but IMO not as well

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It's a 600 watt metal halide conversion, it puts out 55,000 lumens. A 400 watt MH puts out 36,000 lumens and a 1000 watt MH puts out 99,000 lumens, so I would say it's right on track. They don't make 600 watt MH ballasts and yes it worked far better in veg than the HPS bulb I was using before. I just switch the conversion bulb to my HPS bulb when I flower. It's a great alternative to buying a separate ballast.

oJUICEBOXo said:

It's a 600 watt metal halide conversion, it puts out 55,000 lumens. A 400 watt MH puts out 36,000 lumens and a 1000 watt MH puts out 99,000 lumens, so I would say it's right on track. They don't make 600 watt MH ballasts and yes it worked far better in veg than the HPS bulb I was using before. I just switch the conversion bulb to my HPS bulb when I flower. It's a great alternative to buying a separate ballast.

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I agree with this..I have a mh conversion bulb and it does fine for me.Keeps my plants short,green and bushy.

oJUICEBOXo said:

It's a 600 watt metal halide conversion, it puts out 55,000 lumens. A 400 watt MH puts out 36,000 lumens and a 1000 watt MH puts out 99,000 lumens, so I would say it's right on track. They don't make 600 watt MH ballasts and yes it worked far better in veg than the HPS bulb I was using before. I just switch the conversion bulb to my HPS bulb when I flower. It's a great alternative to buying a separate ballast.

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i have a 600 watt hps/mh conversion witch means i can run a hps bulb and a mh conversion bulb and the conversion bulb is not as well. i nver said it didnt work ot it worked shity. im not going to argue i knw what it is. you put a bunch of numbers up for differnt watt lights.
peace.

wyteberrywidow said:

I agree with this..I have a mh conversion bulb and it does fine for me.Keeps my plants short,green and bushy.

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mcpurple said:

and a mh conversion bulb and the conversion bulb is not as well.

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What do you mean not as well? Not as well as what?

Either there is something messed up with this ballast or I just made a stupid mistake. Here is what happened, I took the cover off the ballast looking for a switch, but couldn't find anything. Tried turning it on again and now neither bulb was working. I was plugging in the ballast to the wall outlet then plugging in the light. So i tried plugging in the light then plugging in the ballast into the wall outlet and both bulbs worked. Is this normal?

I always keep my light plugged to my ballast. Well at least you figured it out man! Good luck with your grow, keep us posted.

mcpurple said:

u need a mh conversion bulb witch really isnt worth using,

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Very happy with mine, incidentally.

mcpurple said:

i have a 600 watt hps/mh conversion witch means i can run a hps bulb and a mh conversion bulb and the conversion bulb is not as well.

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¿Qué? .