Light bulbs are found to be not an energy efficient devices and this prompt the government to replace all of light bulbs by the year 2014.
Users are encouraged to use compact fluorescent lamp (CFL) and light emitting diode (LED) since the devices can save a lot of energy.
As for me, I am using the CFL due to its energy efficiency.
As of the year 2014, well it is still a long way. A lot of things can happen on the way.