One of the ways -- if not the best way -- to track the progress of LEDs over the past few years has been through the metric of lumens-per-watt. As you can gather from the name this is an efficiency ...

Progress in the LED lighting industry can best be measured in two separate metrics: pricing and efficiency. Pricing gets most of the attention, but so many factors affect it -- from the cost of ...

Currently the brightest options for those looking to ditch their incandescent light bulbs in favor of the longer life and more energy efficient LED variety are those equivalent to 60 watt incandescent ...

I wasn't sure the price was correct. Normally when I walk through Lowes, I check the price of LED bulbs. It seems they have always been between 11 and 15 dollars for the kind that would screw into a ...

Often when we write about LED light bulbs on SmartPlanet, readers write in to say they're still waiting for a 100 watt-equivalent version - something bright enough to read by, many of you note. A bulb ...

Until recently, options for non-incandescent light bulbs were fairly limited. There were the cheap and effective but harshly lit CFL bulbs, the expensive but high-quality LED bulbs, and the cheaper ...

The marketplace for more-or-less normal-looking LED light bulbs became just a little more crowded yesterday, when Philips announced the dimmable 75-watt equivalent version of its SlimStyle bulb. With ...