(NBC NEWS) -- We are in the last days of the incandescent lightbulb.
Once the invention of Thomas Edison burns out for the final time in your home, you'll have to replace it with one of the new lightbulbs. These are known mainly by their initials, either C-F-L or L-E-D.
"We're phasing the bulbs out mostly because they're energy hogs." says Celia Kuperszmid-Lehrman of Consumer Reports
Big enough energy hogs that ditching the incandescents can save the average home about $143 a year.
Back in 2007, Congress and President Bush had the bright idea to halt the manufacturing, importation, and sale of inefficient incandescent lighting as of January 1st, 2014.
Just in time for the switch, Consumer Reports is weighing in on the best options for lighting. They favor the L-E-D lights over the others.
"Most of them are dimmable, they come on instantly, they last much longer. So, that's why they save so much more energy and they don't contain mercury," states Kuperszmid-Lehrman.
But, L-E-D's costs anywhere from $10 to $30 a bulb.
So, maybe you go with the less expensive CFL.
"You can get really great light in a cfl and those are really only about a buck a bulb. Their downside is that they don't turn on instantly and also, most of them aren't dimmable," says Kuperszmid-Lehrman
Though not as efficient, halogen lightbulbs are also an option.
After january first, incandescents will still be on store shelves until, as they say, supplies run out.