The ban on low-efficiency light bulbs goes into effect on January 1. Here is the story at CNN Money:
Consumers mostly won’t notice the change, as most stores stopped stocking the low-efficiency bulbs last year. Consumers can still purchase traditional incandescent bulbs, with designs improved to meet the new efficiency standards, for less than $2 each. Or, shoppers may, perhaps without realizing it, buy LED light bulbs, which save about $5 a year in electricity and may last 50 years.
LED light bulbs will never dominate in retail unit sales. Lasting at least 20 times as long, they can become the majority of light bulbs installed with retail sales near current levels, around 4 percent of the total for light bulbs.