Save money on energy and experience full brightness the moment you flip theswitch. Unlike other CFLs GE energy smart Bright from the Start CFLs featurea capsule on the inside that provides light instantly. As the GE energy smartCFL warms to its full brightness the halogen capsule turns off. After fullwarm up the GE energy smart Bright from the Start CFL performs as efficientlyas a regular CFL using 75% less energy and lasting 8 times longer than aregular incandescent bulb. These bulbs provide the same light as soft whitebulbs in a similar shape while using fewer watts helping you save money onenergy.