Some people like traditional bulbs while some like CFL. Also Halogens are faster to light up while CFLs are slower. However, in a situation where you want the efficiency of energy while you still want to your bulb to light up instantly without waiting for those precious few seconds, then this new “hybrid” bulb from GE is your answer.
“The halogen capsule inside GE’s new hybrid halogen-CFL bulb comes on instantly, allowing the bulb to operate noticeably brighter in less than a half a second. The capsule shuts off once the CFL comes to full brightness.”