and john kaufman is not happy about it. >> i will have a stock of incandescent light bulbs. >> john is stocking up because of a little known federal law. it raises the efficiency standards for light bulbs. and the old energy inefficient incandescent won't pass. >> we have an oldie but a goody here. >> reporter: here is what to expect. at the beginning of 2012, 100- watt incandescents will phase out and the next year 75-watts and 2014 say goodbye to the 40- watt bulb. john is not crazy about having to switch bulbs but he really hates that the government is telling him how to light up his life. >> i have looked at the constitution and i can't see that they have any authority to tell us what kind of light bulbs to use. >> like many, he is not happy with the current alternative, cfl's and because if you break them, you have mercury to clean up. lucky for john, the future looks bright thanks to sylvania's research facility in massachusetts and here the future is l.e.d., recently introduced for home use. >> it is 80% more efficient and last 25 times longer. >> and no merckry. they're instant