LED Lighting & Energy Efficiency

[mpt]

It depends on how they rectify the power.
Many LED Christmas lights are notorious for having "half wave" rectifiers that flicker more than good bulbs.

Might be just a single diode come to think of it, I mean they really were bad... I'd better buy another set then, to connect on the other side... I don't want the power company round complaining that their generators are begining to shake from the unbalanced load.

 

[TEG]

I don't want the power company round complaining that their generators are beginning to shake from the unbalanced load.

LOL! :tongue:

 

[doug]

Inhabitat » Panasonic’s New LED Bulbs Shine for 19 Years

 

[dpeilow]

The money-no-object option.

C. Crane Company - GeoBulb® LED Light Bulb (Cool White) - Toll Free (800) 522-8863

 

[dpeilow]

Philips Invisible OLED - AVReview News and comment

 

[vfx]

That kind of arrangement could change a lot of things. It opens up and glass or mirror to be a light source. Amazing.

 

[Norbert]

LED Light Bulb, EvoLux, 100 Watt LED Replacement, LED Replacement Bulb, CFL Light, LED Lamp, LED Bulb, 13 Watt LED, EvoLux LED Product Information

Various quotes :

Light Output Comparable to a 100 Watt Incandescent
Luminous Flux: 1075 (Cool White), 1000 (Warm White)
Contains no Mercury or Hazordous Substances
$49.99

It uses the Cree XR-E LED and should be even better when/if it starts using the XP-G.

 

[dpeilow]

Lighting Giant Philips Starts Revolution -- Nikkei Electronics Asia -- November 2009 - Tech-On!

 

[shark2k]

Lighting Giant Philips Starts Revolution -- Nikkei Electronics Asia -- November 2009 - Tech-On!

Interesting read. Would really be nice if they could make it so some of that is actually affordable and available for people to use. I personally liked the changing color temperature throughout the day to help keep people more alert/awake then helping to get people more relaxed and ready to go to sleep.

-Shark2k

 

[dpeilow]

Anyone within range of London on March 11th might be interested in the following:

Kelvin lecture | IET Prestige Lecture Series

Lighting up the future - the way ahead for solid-state lighting

Professor Shuji Nakamura
Materials Department and Solid State Lighting Energy Center (SSLEC)
University of California, USA

Thursday, 11 March 2010 | IET London: Savoy Place

In 2010, for the 101st lecture in the series we’re delighted to have world renowned LED lighting expert Professor Shuji Nakamura here to deliver his vision of lighting for the future.

 

[dpeilow]

LEDs Magazine, Free LEDs Magazine Digital Subscription Subscription

 

[johnr]

GE's New $50 LED Lightbulb Pricey, but Future-Proofed? | News & Opinion | PCMag.com

Nice try, but a CFL would be just as efficient and would cost 1/10th the price. Not to mention, I would never buy an LED light from GE. If I did make such an investment, I'd stick with a brand such as Cree. Still, this shows how the technology is progressing. In a few more years, we'll see LEDs getting more mainstream.

 

[TEG]

Your Luminescence is Approaching Obsolescence

 

[doug]

It's Official: LED Lights Are Coming of Age - Gizmodo.com

 

[TEG]

I see more and more of them on the regular shelves at places like Orchard-Supply-Hardware.
Still very pricey though, but not so bad if you consider the energy/cost savings and longevity.

 

[mpt]

Just picked up my first set of five to replace the globes in the kitchen; I've been waiting 20 years for these and they work.

http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053

 

[dpeilow]

I just got one of these. Highly impressive, if a little pricey.

 

[mpt]

What voltage? 110-240v? I wonder if they'll be any-voltage now.

Is the UK moving to ES instead of bayonet cap?

 

[dpeilow]

They come in both voltages and ES or BC flavours.

 

[cinergi]

View attachment 1218

Just picked up my first set of five to replace the globes in the kitchen; I've been waiting 20 years for these and they work.

http://www.homedepot.com/h_d1/N-5yc...splay?langId=-1&storeId=10051&catalogId=10053

These are awesome. Got a quick review and pics on my blog (fearlessbit.com).
The flashlights available today go up to 2200 lumens! The tech is progressing nicely.