Print 81 comment(s) - last by jamesmay2182.. on Mar 20 at 8:16 PM

  (Source: Philips)
Bulb will debut at $50; nobody said "perfection" was cheap

Nearly four years have passed since the U.S. Department of Energy (DOE) announced the "L Prize", a $20M USD reward to the first company who successfully produced a light-emitting diode (LED) bulb meeting a special set of criteria in terms of energy efficiency and lighting performance.  The prize took money from allocations made by the Energy Independence and Security Act (EISA) of 2007, signed into law by former President George W. Bush.

I. Koninklijke Philips Wins the L Prize

The years have passed and at last there is a winner.  The prize has been awarded to a design from Koninklijke Philips Electronics N.V. (AMS:PHIA), an Amsterdam, Netherlands-based global electronics company.

The winning design is dubbed the "Philips Award Winning LED Bulb".  Its specs easily meet the L Prize criteria:
Philips L Prize

A video on the testing process is seen below:

The Philips bulb survived all the tests, emerging with flying colors.  It did particularly well in longevity testing, showing almost no performance degradation after predicted at 25,000 hours (1041 days, or almost 3 years of continuous operation).

II. For $50 is the L Prize Bulb Worth It?

The bulb trims over 2.5W off Philip's previous generation LED bulb designs, a power savings of roughly 20 percent.  Unfortunately those savings come at a cost -- where as Philip's previous generation models are retailing for around $33 USD, the new bulb retails for $49.95 USD, nearly 50% more expensive.  The bulb is assembled in the U.S. from components manufactured in Shenzhen, China with LED chips made in San Jose, Calif.

L Prize award
Philips Professional Luminaires CEO Zia Eftekhar (left) and Philips Lighting North America CEO Ed Crawford accept the L-Prize award from Dr. Arun Majumdar, a senior DOE official.
[Image Source: DOE/Koninklijke Philips]

The pricey bulb has a 29 percent wall-plug efficiency ratio -- compared to the 60W incandescent lamp’s 12% and a CFL’s 19% wall-plug efficiency.  The new design delivers 90 lm/W (an efficiency measure) –compared to an average 60W incandescent with about 13 lm/W or a CFL with about 53 lm/W.

Detailed information about its color and luminosity performance is available here [PDF], direct from Philips.

The bulb carries a distinct yellowish hue when powered off, but Philips assures that the "remote phosphor" (yellow) disappears when the bulb is powered on.  The emitted light is white with a slightly yellowish hue (as with the standard off-the-shelf incandescent bulbs).

Philips L Prize Bulb
The L-Prize winning bulb design [Image Source: Koninklijke Philips]

Philips is offering a 3-year warranty on the bulb.  And it rates it at 30,000+ hours of life.

Given a $0.10 USD per kWH cost of electricity -- a "middle of the road" scenario in the U.S. [source] -- the bulb would save approximately $150 USD over its lifetime ($0.10 USD/kWh * 3e4 h * 0.050 kW) versus an incandescent design.  However, the additional 2.5 watts of power savings over previous generation models only represents approximately $7.50 USD more in savings.

Aside from the cost savings, the LED lights also offer smoother dimming than incandescent bulbs, with less impact on longevity.  And unlike compact fluorescent lighbulbs (CFLs), a rival energy efficient design, they lack toxic compounds like mercury.

Thus the bulb may be sought after by LED lighting enthusiasts, but will likely be overlooked by businesses, which would tend to prefer cheaper, more mature LED designs.  However, the technology should eventually fall into line with current generation models price-wise, offering the best of both worlds.

We're still a long way from the promises of some LED researchers -- a 60-year light bulb that costs $2.85 USD -- but the industry is starting to get to the point where LED lighting makes sense for businesses and consumers from a financial perspective.

You can order the bulb from various sources, such as Light Bulb Emporium.  It should ship in March.

For its win, Philips receives $10M USD, and free promotion from the DOE.  The DOE still has more money to give to other L-Prize winners.

Be careful when browsing sites or shops looking for this bulb as there's many different models out here.  Note this is the <10 W Endura series model.  This should not be confused with the last-gen 12.5W Endura series model (linked above) or the (last-gen) 8W Ambient Light series.

Note 2:
While the bulb design was an international effort based on the multi-national Koninklijke Philips company, the award winning design was submitted by Philips Lighting North America, who will be producing and marketing the bulb in the U.S.

Sources: DOE, Philips, Light Bulb Emporium [order]

Comments     Threshold

This article is over a month old, voting and posting comments is disabled

RE: I would buy this over CCFL any time.
By Reclaimer77 on 2/27/2012 1:43:43 PM , Rating: -1
In theory CCFL's never break either. Problem is what usually fails isn't the bulb, but the electronics powering the bulb. The power supply, ballast, etc etc.

Same thing with LED's. The bulbs won't break, but they will fail all the same when the cheap electronics making up the power supply give out. Which they will.

One might think for $50 they are buying a higher quality product, but in the case of LED's, sadly that's not the case. At this price point, this is a very bad buy. LED manufacturers are making wild claims they simply can't back up, based on half truths. Even if the bulb makes it the quoted "50,000 hour MTF". What they aren't telling you is even if the bulb lasts that long, it's light output will be around 70% less than what it was when new. LED's themselves die hard, but they DO fade away.

I have reasons to believe it will last much much longer than the rated figure.

Could you give us these reasons please? I would like to hear them, because nobody else familiar with the industry and electronics seems to be making such claims.

RE: I would buy this over CCFL any time.
By ChronoReverse on 2/27/2012 1:54:48 PM , Rating: 3
Did you notice that one of the requirements for the prize was >70% light output at 25000 hours? And that this bulb still got over 99%?

RE: I would buy this over CCFL any time.
By Reclaimer77 on 2/27/12, Rating: -1
RE: I would buy this over CCFL any time.
By tayb on 2/27/2012 2:55:21 PM , Rating: 4
What if I am using this for a facility where the lights are to remain on 24 hours a day and 365 days a year. This will pay for itself several times over the course of a few years.

RE: I would buy this over CCFL any time.
By Reclaimer77 on 2/27/12, Rating: -1
RE: I would buy this over CCFL any time.
By tayb on 2/27/2012 3:28:40 PM , Rating: 2
Maybe a diamond showroom with overhead lights that always remain on? Car showroom? I can think of plenty of cases where a light like this, even at $50, could save you a lot of money long term.

RE: I would buy this over CCFL any time.
By Reclaimer77 on 2/27/12, Rating: -1
RE: I would buy this over CCFL any time.
By tayb on 2/27/2012 4:49:59 PM , Rating: 2
You're absolutely right. Please continue telling me how right you are.

RE: I would buy this over CCFL any time.
By Spuke on 2/27/2012 6:57:06 PM , Rating: 2
I think he has a point but might not be coming across very clear. You wouldn't be using this type of bulb in a commercial setting. Or maybe I'm reading him wrong. I would not pay $50 for a LED bulb BUT I have two of the older 12.5W and they cost me $30 each. As bulbs have blown out, I have replaced them with these.

A bit OT but maybe not, I have a RV and have replaced all of the interior lighting with LED's mainly for power savings while camping off grid. Saved 260W total there. Lots of RVers are switching to LEDs for the same reason (solar installs are popular too...primarily the off grid RVers).

RE: I would buy this over CCFL any time.
By Reclaimer77 on 2/27/12, Rating: -1
RE: I would buy this over CCFL any time.
By mcnabney on 2/27/2012 11:25:07 PM , Rating: 1
$50 for a 60W equivalent bulb. That might be fine for a lamp or a ceiling fan with five of them, but these are nowhere near what the market needs. The damn prize was pathetically easy to win - no minimum costs and the light output doesn't meet typical household needs.

By Spuke on 2/27/2012 11:47:50 PM , Rating: 2
no minimum costs and the light output doesn't meet typical household needs.
Actually they do which is why I have these (the older one's mentioned). There's been a ton of blatant false advertising on LED's (CFL's too) but they finally meet (at least Philips does) incandescents. Actually, you don't need these $50 one's, the older $30, 12.5W versions work perfectly (and are TRULY 60W equivalents) and have been coming down in price. You can get a 4 pack of these on ebay for $84.

By mindless1 on 3/3/2012 12:14:28 PM , Rating: 2
No it won't, because those situations are not using 60W incan bulbs otherwise.

Everyone keeps overlooking the obvious answer. 4' long tube fluorescent bulbs. 40W type has higher lumens /watt and cost about $1 each. Incredibly they've been around for years and lots of homes use them and yet everyone wants to pretend they don't exist or something.

Madness! If we're not sticking with incan bulbs there is no reason to continue to gravitate to the edison incan bulb socket, ESPECIALLY if the bulb itself costs more than the average fixture does.

RE: I would buy this over CCFL any time.
By McDragon on 2/27/2012 3:03:09 PM , Rating: 1
Yeah, go buy a 1$ lightbulb...Just don't use your brain to calculate how much that will cost you over the lifetime of the bulb.

By someguy123 on 2/27/2012 3:24:06 PM , Rating: 2
The cost of these LED bulbs are more likely to drop with manufacturing improvements over the course of a year than the cost savings of having an LED bulb plugged in 24/7. So yeah, it would be better to buy a dollar bulb and swap them out once these bulbs become cheaper.

That said these are also pretty damn expensive, even for LED. You can purchase 2-4 similarly rated LED bulbs at $50, though obviously their lifespan not quite as proven as philips at this point. At this price these things only make sense in areas difficult to maintain.

By Skywalker123 on 2/28/2012 8:19:31 PM , Rating: 1
Your boyfriend and you take turns sucking each others johnson for free, thats why you won't pay 50 bucks.

By erple2 on 2/27/2012 2:26:02 PM , Rating: 5
LED's themselves die hard, but they DO fade away.

Then I'll just go buy some incandescent bulbs. I've heard that it's better to burn out than to fade away.

“We do believe we have a moral responsibility to keep porn off the iPhone.” -- Steve Jobs

Latest Headlines

Most Popular ArticlesAre you ready for this ? HyperDrive Aircraft
September 24, 2016, 9:29 AM
Leaked – Samsung S8 is a Dream and a Dream 2
September 25, 2016, 8:00 AM
Yahoo Hacked - Change Your Passwords and Security Info ASAP!
September 23, 2016, 5:45 AM
A is for Apples
September 23, 2016, 5:32 AM
Walmart may get "Robot Shopping Carts?"
September 17, 2016, 6:01 AM

Copyright 2016 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki