The issue with CFL's the environmental factor due to the mercury. It is true that CFL's are energy efficient, however LED's take 50% less energy than CFL's and last 10 times longer. There is no mercury issue to deal with either and LED bulbs work with dimmer switches and are cool to the touch. CFL's take longer to warm up to light up a room and are usually too warm to remove soon after they are turned on. Link the LEDs to a solar system on all government facilities as well and we should be able to cut our energy usage across the board nationally.