One of my apollos 600 w bulbs is yellow light and another is white?

Hey i got two 600 watt bulbs both from apollo.

I just put a new bulb into my ballast about few months ago.. Light is yellowish.

Just got a new ballast/ bulb from Amazon... Apollo 600 watt setup.. came with two bulbs... One was big? and other box came in smaller standard box. Anyways i put the bigger bulb in.. and it gives off a white light.

Why is one yellow and another whitish?

Also is the bigger bulb maybe an air cooled bulb or something? Why bigger?
I read box and not info about bulb on it..

Big bulb is mh ..skinny one hps ..different spectrums.

Oh well since i'm flowering.. with that ballast
I should take out the big bulb.. MH and put the other Hps bulb in right?
thanks

Corso312 said:

Big bulb is mh ..skinny one hps ..different spectrums.

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Jesus dude, I guess you don't get much sleep these days, do you?

ttystikk said:

Jesus dude, I guess you don't get much sleep these days, do you?

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Lol... That ends next weekend, I'm Gona sleep for 15 hours straight after I chop.

Yep scared me when i first went to hud lighting. Mh bulb puts out white light while hps puts out yellow light. Different spectrums i guess but it works. Lol.

Yeh thing is i'm flowering so better put in the Hps yellow light bulb right?

StonerMike8035 said:

Yeh thing is i'm flowering so better put in the Hps yellow light bulb right?

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Yep. But to be sure in yours many mh bulbs are egg/oval shaped while most hps is long and slim.