1) Efficiency: LED bulbs use close to a third of the amount of power CFL bulbs would use to produce the same amount of light. This makes them the ideal choice in portable applications for the purpose of extended battery life.
2) Durability: LED bulbs last ten times longer than CFL bulbs. Additionally, the lifetime of a CFL bulb tends to drop drastically when it is used in a frequently cycled application. LED bulbs also exhibit a far better performance in a vibratory application.
3) Cost: The complex manufacturing process of semiconductors makes LED bulbs expensive on the market. LED manufacturers rationalize this fact by the bulbs longer life time and energy efficiency.
4) Environment: The traces of mercury in CFL bulbs will be spilled when the glass is broken. The smallest amounts of mercury vapor are toxic to the human body and cause nervous system problems. Mercury is not used in LED bulbs.
5) Versatility: CFL bulbs are limited to general lighting applications while LED bulbs could range in size, color and shape. LED bulbs could be used from decorative to heavy duty industrial applications.
6) Maintenance: Smooth light and low maintenance compared to CFL