According to this site :
Incandescent light bulbs work by heating a tungsten filament, or wire, until it glows. This is what produces the light you see. Unfortunately, 90% of the energy used to generate that light is wasted as heat, making incandescent bulbs a very inefficient way to light your home.
CFLs, on the other hand, create a chemical reaction among gasses located inside the glass tube, causing phosphors to illuminate.ENERGY STAR qualified CFLs provide bright, warm light and use 75% less energy, produce 75% less heat, and lasts up to 10 times longer.
I have and use both types of bulbs.
You implied that wiring/sockets for the two types were not the same. Again, What is the difference?
“wasted as heat,”
Nope! At night and in the winter when it’s dark and you have the lights on, that heat warms the room. Incandescents make sense for residences. Electric heat is very efficient since all losses show up as heat.
The lights that illuminate the White House at night waste elecricity and heat, though- it goes into the air, causing global warming and it melts the polar bears.