How many lawmakers does it take to…

Americans certainly know about that law now. On paper, its purpose is to increase energy efficiency by requiring that bulbs produce more light per watt. But by setting the new standards higher than the common incandescent can reach, the law’s real-world effect is to deprive most Americans of the freedom to buy the light bulbs they prefer. Instead, they will be forced to spend more money for fragile halogen bulbs or for the swirled compact fluorescent lamps (CFLs) that have been around for decades but that most consumers have never wanted to buy.

The looming ban has stoked grassroots outrage, especially on the right. Presidential candidate Michele Bachman draws cheers and applause when she tells Republican audiences: “President Bachmann will allow you to buy any light bulb you want.’’ Last week, a bill repealing the light bulb mandates was put to a vote in the House of Representatives; it won a majority (233-193), with nearly every Republican favoring repeal and nearly every Democrat opposed. Since two-thirds support was needed for passage, the 2007 law remains intact.

For now.

Washington oversteps its legitimate bounds all the time and usually gets away with it. But every now and then a federal encroachment is so egregious that the public rebels against it. Outlawing the light bulbs that illuminate 85 percent of American homes strikes me as such an encroachment - one that even Democrats should be embarrassed to defend.

The use of efficiency mandates to snuff out the standard light bulb was an exercise of unadulterated crony capitalism. It came about after big bulb manufacturers, frustrated by their customers’ refusal to switch from cheap throwaway incandescents to the far more profitable compact fluorescents touted by greens, decided to play hardball.