400 Watt HPS a few questions?

[gobears4eva]

ok so i posted a thread before that asked whether or not all hps can run Mh bulbs or not and i had some statements that said yes,some said no,some said a bunch of stuff so heres my questions
1.Will my HPS run MH bulbs too(my firend just purchased a MH bulb)?
2.Will switching from a MH bulb to HPS cause any shock to a plant?
3.Any help would be appreciated +rep

 

[Beagle]

Depends on your ballast...and type of fixture. There are horizontal MH bulbs and there are vertical...pick the right one for your fixture.

 

[Timmahh]

an HPS ballast wil run an HPS Bulb, a Conversion HPS Bulb or CMH (Ceramic Metal Hilaide) bulb. Not wont run a MH or a Conversion Metal Hilaide bulb.

a MH ballast will run a MH bulb or a Conversion MH bulb but not a CMH (Ceramic Metal Hilaide Bulb).

some ballast are switchable (mostly Electronic ballast) so they will run either an HPS or a MH, but you can not use an E-Ballast on a CMH (Ceramic) bulb. UNLESS the E Ballast specifically states it will run a CMH Bulb.


MH bulbs are more a a blue colored Veg bulb, while HPS is a red colored Bloom bulb. so using MH isnt as good for Blooming as a HPS is, and a HPS isnt as good a veg bulb as a MH is.

 

[MsBBB]

ok so i posted a thread before that asked whether or not all hps can run Mh bulbs or not and i had some statements that said yes,some said no,some said a bunch of stuff so heres my questions
1.Will my HPS run MH bulbs too(my firend just purchased a MH bulb)?
2.Will switching from a MH bulb to HPS cause any shock to a plant?
3.Any help would be appreciated +rep

It would depend on your ballast, all types will not accept either or bulbs. Some units require a conversion bulb, a special MH bulb that can work properly with a HPS ballast. If you know the brand of your ballast you can contact the company or place where you purchased it. I am interested in the CMH (Ceramic Mercury Halide) bulbs that can be used from vegging to flowering without having to switch bulbs. Based on what I have read about these bulbs they do not work with digital or electronic ballast. I don't know what mine is, but I think it is a regular/magnetic ballast. If your ballast is not compatible the bulb probably won't work.