Rough service, fan bulbs, oven bulbs, garage operator bulbs, are all the same thing. A slightly smaller globe, and a heavier filament. (Vibration kills most bulbs) only one with a diffrence is the oven bulb, which has a heat coating on the globe to prevent broken glass in your food.
No matter what, THAT bulb will always exist, because all replacement bulb types melt at oven temps.
If they are not designed for the load,
I would suggest reducing those 300wt bulbs to what the fixtures and wires are rated for. Adding a few aftermarket lights would be a lot cheaper than the repairs from the possible fire.
Oversized bulbs are easy money sevice calls, because parts are burnt and have to be replaced. (I'd know, I'm the service tech.)
