Brighter LED Lights Could Replace Household Light Bulbs Within Three Years

Science Daily ^ | 1-10-2008 | University of Glasgow.

[Anti-Bubba182]

Thanks!

[Amendment10]

But, but, but, they said invest in the mercury bulbs. Watch to see who tells you LED’s cause cancer, birth defects, and retardation.

GO LED’s

I studied solid state electronics in college. I cannot see any problems, health, environmental or other, with LED technology. Corrections welcome.

[null and void]

If they turn on as soon as you hit the switch...

They do. Even faster than incandescents.

If they are bright as soon as they come on rather than waiting for them to warm up...

They are. And you can dim them with a standard dimmer switch. (Although the color doesn't change to yellow/orange and they dim down like an incandescent lamp)

If they don't have a "hum" when they are on...

Less hum than some incandescents, no filament whipping around in it's own current induced magnetic field.

And the classic LEDs were rated for 100,000 hours (About ten years continuous use). Newer ones? 200,000 hours...

[Clive]

Excellent. Thank you.

Just what I am looking for.

[null and void]

Just so long as they aren’t BLUE!

Like fluorescent lamps, the newer ones are offered in a variety of 'warmths'

[goldfinch]

I started using the CFL lights in places where it is difficult to change the bulb at least 10 years ago. I now use them in more than half of my lights. They aren't perfect, but they make my life easier and they save me money. When the LEDs become affordable, I will give them a try.

I am not attached to 90 year old technology.

[icwhatudo]

Thanks!

[null and void]

But they cost a mint.

$22 for a bulb.

True, but they are subject to Moore's Law. Expect the price to halve and the performance to double every 18 to 24 months...

[wastedyears]

Not all over, certain lights yes.

[Eva]

We have LED down lights in the eaves of our house. We have them only because the incandescent fixtures didn’t fit, but we would never know the difference. The under and over cabinet ones are useless, though. They are nothing but accent lighting.

[Eva]

We have LED down lights in the eaves of our house. We have them only because the incandescent fixtures didn’t fit, but we would never know the difference. The under and over cabinet ones are useless, though. They are nothing but accent lighting.

[hemogoblin]

We got two strings of LED lights for the tree this year and they are very cool. Super bright! And they throw these colored spots on the ceiling. You can aim them at ornaments like little spotlights.

[null and void]

No problem!

Full disclosure: I made LEDs back in the 70’s. I have a warm spot in my heart for them.

At one time, for a few brief hours, I was the only person on earth who knew how to make the brightest LEDs ever seen...

[mouser]

here is a link to all kinds of non powered lamps not only coleman be forewarned do not let wife see this it could become expensive

http://www.lehmans.com/jump.jsp?itemType=CATEGORY&itemID=669&iMainCat=669&iSubCat=669

[garandgal]

They are hideous

Agreed. Two years ago, we decided to "save money" by decorating the outside of the house with those things (white). We are talking the entire two-story house...extension ladders were involved.

We waited eagerly for nightfall to turn them on; I've never seen such a hideous sight. It was so abhorrent to us, that my husband got the ladders back out; took them all down...and replaced them with regular Christmas lights.

The colored lights aren't quite as bad...but they look like a Lite-Brite.

[BereanBrain]

Uhhh, I like LED lights, but until they get more powerful, they can’t be compared.

Obviously you don’t have these in your house.

LED bulb you linked to 30-40 LUMENS
Average 60W bulb = 840 LUMENS

So at current power/efficiency, you need ~ 20 of the bulbs to match the “brightness” of a 60W incandescent.

BTW, better LEDs are on the way - they are SOOO bright they are proposed for use as car headlights!

My suggestion, wait until the new generation arrives before spending $$$$

[Neidermeyer]

If they turn on as soon as you hit the switch...
****************************************************
They turn on faster than a standard light bulb.

[Old Professer]

Over-voltage?

[dr_lew]

http://www.youtube.com/watch?v=KnNOWdkxpZs&feature=related

[null and void]

Nope, a simple processing technique. 70% brighter under the same drive conditions.

I got an attaboy...