Need help ASAP with room setup

Hello guys I appreciate your time and help...

Setup
(3)cool tubes
(3)1000w GE bulbs
(3)hydro farm magnetic ballasts...

Had a professional wire up the room for 240.

So I plug all three lights in and after an hour one will shut off for a minute and thirty seconds and then turn back on by themselves.

I don't know if it's the ballast or the cool tubes or what? But it happens on different lights... So I'm really unsure what the issue is. Maybe the ballast are getting too hot and I need to get digital ones? Could
It be the bulb?
 
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