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Lighting trouble?

I've finally got my T-8 lighting system up and running (5 F32 T-8 bulbs with
2 electronic ballasts in a hood on a 55 gallon tank). 3 of the bulbs are
5000k and two are 6500k. It's only been running a few hours and the bulbs are
much hotter than I was expecting, being almost painful to the touch. Is this
normal? If not does anyone know what the problem could be?