New High-Efficiency White OLED Lamp has 10,000-hour Life Span

By Ian Bell June 5, 2009

The Electronics and Telecommunications Research Institute (ETRI), a government-funded think tank, has developed a new organic light emitting diode (OLED) lamp, which has an electricity consumption efficiency four times higher than that of typical incandescent electric lamps.

The ETRI-developed white OLED lamp has an efficiency of 70 lumens per watt, more than four times higher than the typical 15 lumens per watt of incandescent lamps. Remarkably, the new OLED lamp is also an environmentally-friendly invention in which no mercury is used.

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In a lab environment, the OLED lamp has a lifetime of 10,000 hours, 20 percent longer than existing fluorescent lamps’ 8,000-hour lifetime. The OLED lamp market is expected to be worth about W3 trillion (US$2.4 billion) by 2015.

Ian Bell

Publisher

I work with the best people in the world and get paid to play with gadgets. What's not to like?

Smart Home

Early Black Friday chest freezer deals: up to 40% off today

The Insignia 7-cubic feet chest freezer placed in a garage.

Update 10/29/24: This starts our Black Friday coverage of chest freezers, and we like what we see so far. The following deals are from a variety of good brands, show a wide range of prices, and most importantly come in various sizes, so you can pick what is right for your home.

While Black Friday officially starts on November 29, retailers are getting started early this year. That means great early Black Friday deals, including on things like chest freezers. Here, we search high and low for the best deals on chest freezers to hit the market. That means we're looking at sources like Walmart's, Amazon's, and Best Buy's early Black Friday deals among others to get you the best deals possible. Whether you're wanting to store ice cream, meat, or a party's worth of frozen pizza, these are the best chest freezers for you.
Hisense 5 cu. ft. Garage Ready Chest Freezer — $165 $189 13% off

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Best cordless drill early Black Friday deals: DeWalt and more

Update 10/28/24: This marks the beginning of our drill coverage for 2024's Black Friday shopping season, and all of the major brands have at least one great deal. While we're excited for what is to come, this is a fantastic start and there's really no reason to not go ahead and get prepped by buying something now.
If you're buying anything this Black Friday, there's a big chance you might want a drill/driver to go with it. A drill/driver is one part drill, one part (screw)driver and it can help out in many situations. For example, say you take part in one of these early Black Friday TV deals, you very well might want to wall mount it. Then, say you grab up an easy coffee maker from Keurig's early Black Friday deals. An extra side table in your study would sure go nice with that and a drill/driver could very well make the table's construction much easier.
Really, with so so many of your early Black Friday purchases, there might be a chance to pick up a cordless drill or driver and get to work. As such, we've compiled a list of the best cordless drill deals throughout Black Friday deals that are available now, so you can get a head start on prepping for the savings that are to come.

Skil Pwr Core 12 Drill/Driver — $50 $59 15% off

Smart Home

Best Roomba deals: Top robot vacuums from as little as $170

If you come home and don't really look forward to doing the day-to-day dusting and vacuuming that's required to keep everything clean, then robot vacuums are a great solution. Probably one of the best-known brands is Roomba, and if you're looking to pick up a new one, then Roomba has a lot of great options you can pick from.. Whether you're looking for a budget-friendly option or something a little bit more high-end that comes with a self-emptying station, we've gone out and collected some of our favorite Roomba deals below.

That said, if you don't necessarily want a Roomba, you can check out these general robot vacuum deals, and for the more substantial messes, there are always these vacuum deals and cordless vacuum deals too.
iRobot Roomba i1 -- $170 $220 22% off