When to change light bulbs.

[maryc137]

I have 440 watts of VHO lights. Just wondering how long most of you go before changing bulbs. I've had them running since about February 1 and was just wondering how soon I should get new bulbs.

 

[richard rendos]

That would depend on whether you are using a magnetic or electronic ballast. Magnetic ballast - every 6 months or so. Electronic ballast (like IceCap) once a year or so. Also, don't change them all at once. Replace one at a time and wait about a week between each one. That way you won't fry your inhabitants.