They're selling like hotcakes.

"I'll stock up, because you're never going to see them again," Wichita shopper Nancy Thelman says.

Ace Hardware at Douglas and Hillside still has a lot of cases of the 40 and 60-watt incandescent light bulbs.  But when those are gone, that's it.  The government's ban on manufacturing the cheap, inefficient lights takes effect in a few days.

As a result, buying light bulbs is about to get complicated.  You'll have to make a choice between the compact fluorescent, halogen or LED.  They all cost more than the old standbys, but they use less energy and are supposed to last longer.  The LEDs last the longest and use the least, but they cost the most.

The store manager says most customers still prefer the old inexpensive kind.  He's expecting a big rush.

"People will start asking more and more once friends tell friends that, hey, you can't get those any more," Patrick Pape says.

Meanwhile, Thelman says the bulb ban is "stupid."

"I guess I'm old school," Thelman adds.  "But I like the old kind."

In case you hadn't noticed, 75 and 100-watt bulbs were banned at the start of 2013.  However, manufacturers can still produce certain specialty-type incandescents.

Click here to learn more about all the new kinds of bulbs. 

The ban was passed by Congress in 2007 and signed into law by President George W. Bush.