LED bulbs are the way to go....virtually no heat generated, not the ugly curly Chinese bulb full of toxic mercury, a great light to for us senior citizens to read by.
We bought a case of 15 for less than $100, and they will outlast us. The bonus was that our electricity bill immediately showed a 15% savings, so they pay for themselves in a year.
So how long does an LED bulb last? We get voltage spikes which wreak havoc on bulbs and have avoided expensive LEDs for that reason