What would happen if...

[Midknight]

Originally Posted by Beverly

Sheesh, I'm not electronics whiz, but the one Workhorse 5 ballast in our Hamilton fixture came with two 55w PCs. We use 65w PCs with that ballast with no problem. I think it might depend on your ballast. What ballast do you have?

Yes Bev, but that is under powering it. Putting a 65W in a 55W socket just means it will not get enought power and not glow as bright.
I don't think the 55W in the 65 W would explode (don"t qute me on that)
But I think it would burn a lot brighter for a much shorter time if it fired up at all.
IMO .