What is the energy efficiency of CFL’s compared with incandescent light bulbs?

The energy efficiency of CFL’s offer many benefits over the old-style incandescent lighting. The twister lights use 75% less energy and money with incandescent lightening. The more modern up to date have a higher quality of light and the color is better. They also come in different temperatures. Since 90% of the energy is used to produce light little of the heat is used and reduces cooling costs. Incandescent light bulbs turn 90% of the energy used into heat and only 10% of the energy into light. Fluorsescent bulbs produce the light up to 8 times longer than standard incandescent bulbs. The twister bulbs contain mercury which is a material that should not be let out to the air of the environment. It came to my attention that the original lights that we use are being used more for electricity than for the actual light. Even when turned off they are using a lot of energy. Why not save money and purchase the CFL lights that are safer and cheaper for your home.