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(Phys Org2)   Do you still have any incandescent bulbs lying around? Get ready to throw that junk in the trash   (phys.org) divider line 75
    More: Interesting, quantum dots, incandescent light bulb, quantum dot light emitting diodes, Nature Communications, Los Alamos National Laboratory, LEDs, nanotechnology, deadweight  
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7337 clicks; posted to Geek » on 26 Oct 2013 at 11:35 AM (38 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



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2013-10-26 06:52:05 AM
Quantum dot lightbulbs?


/holy crap
 
2013-10-26 11:44:58 AM
What dim-bulb came up with this idea?
 
2013-10-26 11:51:13 AM
I usually feel a little smarter after reading these types of stories... That was not the case today. Can someone please translate or show an example.
 
2013-10-26 11:51:15 AM

Sgygus: Quantum dot lightbulbs?


/holy crap


Yes.
Only $2,300 each!
 
2013-10-26 11:52:01 AM
I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though
 
2013-10-26 11:58:54 AM
I eagerly anticipate the LED oven light...

StrikitRich: I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though


"cheap"? Have you been on eBay?
 
2013-10-26 12:06:56 PM

Quantum Apostrophe: I eagerly anticipate the LED oven light...

StrikitRich: I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though

"cheap"? Have you been on eBay?


What am I supposed to be seeing? The 60W replacements are are  $80 for a case of 6 on eBay, $75 for a case of 6 on Home Depot's website.
 
2013-10-26 12:08:49 PM
This is not helping my hang-over
 
2013-10-26 12:10:28 PM

clkeagle: What am I supposed to be seeing? The 60W replacements are are $80 for a case of 6 on eBay, $75 for a case of 6 on Home Depot's website.


Are you kidding?
 
2013-10-26 12:17:49 PM
Get ready to throw that subby in the trash.
 
2013-10-26 12:19:18 PM
I'm still working through several boxes of CFLs I got on clearance for 50 cents a bulb about 4 years ago. By the time I burn through these, the next couple of levels of tech might be down to a reasonable price point.
 
2013-10-26 12:20:03 PM
img.fark.net

Real Americans, use real bulbs. Queers.
 
2013-10-26 12:24:18 PM
I bought three cases of 100 watt bulbs, just in case.  Now that my entire house in LED and CFL [with the exception of the outdoor floodlight on a motion sensor], I sort of wonder what I'll do with 'em.

Maybe I'll hold onto them for another 95 years, then I can sell 'em in an antique store.
 
2013-10-26 12:31:47 PM
Oh, awesome.  Now everyone will have ghastly grey daylight balanced LED's in their lamps and homes at night instead of ghastly grey CF bulbs.
 
2013-10-26 12:36:03 PM
My electric company started a program to give each customer 4 CFLs. We signed up. No one liked them & few signed up so they just kept mailing them to those that did. 
I got 20-30 bulbs for about 2 years.
They sucked, but free is a good price.
 
2013-10-26 12:39:02 PM

Easy Reader: Oh, awesome.  Now everyone will have ghastly grey daylight balanced LED's in their lamps and homes at night instead of ghastly grey CF bulbs.


It's easy to pick out the people who've never used Cree's bulbs. Awesome color temp, high CRI, and now pretty dang affordable.

/was the first person to buy their LR6 can light in my region, in 2008.
//it's been running 24/7 since then.
 
2013-10-26 12:42:27 PM

clkeagle: Quantum Apostrophe: I eagerly anticipate the LED oven light...

StrikitRich: I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though

"cheap"? Have you been on eBay?

What am I supposed to be seeing? The 60W replacements are are  $80 for a case of 6 on eBay, $75 for a case of 6 on Home Depot's website.


Yep, cheaper than the other brands at $21 to $35 a bulb.   I put the LEDs in my outside lamps that burn all night.  The Crees are about half the cost of the Phillips bulbs I originally bought.

Still have plenty of the incandescents for reading light.
 
2013-10-26 12:50:21 PM

Quantum Apostrophe: clkeagle: What am I supposed to be seeing? The 60W replacements are are $80 for a case of 6 on eBay, $75 for a case of 6 on Home Depot's website.

Are you kidding?


What am I supposed to be outraged about? You're obviously making a point, but I have no idea what it is.
 
2013-10-26 01:03:35 PM
Interesting article but when it shows a TEM picture with acronyms and no reference I get kinda stabby.

/CBP is 4,4′-N,N′-dicarbazole-biphenyl I believe.
 
2013-10-26 01:04:35 PM
I've switched my whole house to the CFL bulbs and I cant stand them. They're no where near as bright as they claim they're supposed to be and I hate how they take upwards of 30 seconds to ramp up to full brightness. Worst of all, I didn't notice any difference in my electric bill.
 
2013-10-26 01:20:28 PM
We just moved into a house that has CFL lamps in pretty much everything that isn't dimmable, I'm getting used to it, have noticed a bit of a drop in the baseline electric use, but that's going to take a bit longer to figure out where that is because the water heater, stove, and dryer are all gas (all were electric in the old house). This house also has real AC vs a swamp cooler in the old place.

I will admit to preferring the dimmable recessed lights in the kitchen and incandescents in the ceiling fans, but the CFLs everywhere else aren't horrible.
 
2013-10-26 01:24:41 PM

ReapTheChaos: Worst of all, I didn't notice any difference in my electric bill.


and that right there is the catch, isn't it?
 
2013-10-26 01:26:31 PM
I have a power-saving system that doesn't depend on the type of bulb: 1) the only light that's on is the one in the room I'm in, 2) skylights throughout the house, so in daytime I never have to turn on a bulb, 3) live in Southern California next to the Pacific Ocean so I never need heat or air conditioning.

It's easy when you know how.
 
2013-10-26 01:31:58 PM

Reverend J: Interesting article but when it shows a TEM picture with acronyms and no reference I get kinda stabby.

/CBP is 4,4′-N,N′-dicarbazole-biphenyl I believe.


You ah cahrect sah!

http://www.guidechem.com/dictionary/58328-31-7.html
 
2013-10-26 01:33:53 PM

jjorsett: 3) live in Southern California next to the Pacific Ocean so I never need heat or air conditioning.


if you live in Southern California next to the Pacific Ocean....  I'm betting that saving a few bucks on the power bill isn't really much of an issue, now is it?
 
2013-10-26 01:35:23 PM
Nice to see LED technology continuing to march on, especially since the coming phase-out of mercury will probably be sending CFLs the way of incandescents.
 
2013-10-26 01:42:04 PM

StrikitRich: I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though


??? I bought incandescents a week ago.
 
2013-10-26 01:43:45 PM

ReapTheChaos: I've switched my whole house to the CFL bulbs and I cant stand them. They're no where near as bright as they claim they're supposed to be and I hate how they take upwards of 30 seconds to ramp up to full brightness. Worst of all, I didn't notice any difference in my electric bill.


Don't buy crappy Chinese lightbulbs?

I have two of the "100W" and two of the "65W" equivalent ones in my bedroom and it takes about 2 seconds to be bright enough to do surgery in here. In my old place I used to leave the CFLs burning day and night and my power bill only spiked in the middle of summer when the A/C had to run constantly. In winter it was next to nothing (gas heat). They're all GE-brand ice cream cone style bulbs from 2008 or so. Haven't had a single one fail or go dim in all that time. IDK, maybe they've started cutting corners with them lately to keep up with demand.

I can't wait for LEDs to become a practical replacement, though.
 
2013-10-26 01:45:11 PM
ReapTheChaos: I've switched my whole house to the CFL bulbs and I cant stand them. They're no where near as bright as they claim they're supposed to be and I hate how they take upwards of 30 seconds to ramp up to full brightness. Worst of all, I didn't notice any difference in my electric bill.

I replaced a few lights with CFLs (that a friend gave me for free because that style of bulb didn't fit the new fixtures in her house (bulb was too big).

They fit into some of my fixtures and lamps, so I put them into all of the non-dimmable places where they fit.

// didn't notice much of a change in my electric bill ... then again, my bill is only $50-$80 per month, depending on the season/weather. So a shift of say $5 or less per month.

// I don't leave lights on in my house when I'm not in a room, which is probably why I don't notice much of a change. They can't save me much if the light that they replaced wasn't on very often.
 
2013-10-26 01:45:55 PM

frepnog: jjorsett: 3) live in Southern California next to the Pacific Ocean so I never need heat or air conditioning.

if you live in Southern California next to the Pacific Ocean....  I'm betting that saving a few bucks on the power bill isn't really much of an issue, now is it?


Notice he's inside. Typing on a computer. Might as well live in India or Japan or Nebraska, if all you ever see is a screen.

/Going back out to play in my garden.
 
2013-10-26 01:46:38 PM
So a shift of say $5 or less per month would go unnoticed.

// oops, thought I typed that part.
 
2013-10-26 01:59:02 PM
I replaced all the bulbs I use regularly (bedroom, kitchen, bathroom, etc) with CFLs, but the small areas that I only need light for small bursts (like a storage room), I kept the incandescent ones. Why spend $5-$7 on a bulb that will only get turned on every once in a while, and for less than 10 minutes?

Also, lots of well insulated windows help too.
 
2013-10-26 01:59:07 PM
I already have nothing except the cheap LED bulbs in my house.  It really did make a significant drop in the power bill.

They are also great because I'm at the end of a power line so I get surges all the time.  Incandescent bulbs last about 6 months.  CFLs last about 1.  The LEDs are going strong after a year.  The less expensive CFLs are really susceptible to voltage spikes.
 
2013-10-26 02:02:31 PM

ghare: StrikitRich: I stocked up before they banned them then discovered the cheap Cree LEDs at Home Despot.  Still like them for reading, though

??? I bought incandescents a week ago.


I might be wrong because well I haven't checked the facts, but I believe all the new regulations did was create a target efficiency which previous incandescents didn't meet.  CFL was the only solution to meet it.  But then they improved the incandescent bulbs and so no big deal.  That and/or the regulation was only on certain sizes.

/too lazy to google.
 
2013-10-26 02:10:46 PM

Snarcoleptic_Hoosier: I replaced all the bulbs I use regularly (bedroom, kitchen, bathroom, etc) with CFLs, but the small areas that I only need light for small bursts (like a storage room), I kept the incandescent ones. Why spend $5-$7 on a bulb that will only get turned on every once in a while, and for less than 10 minutes?

Also, lots of well insulated windows help too.


You're right.  It doesn't pay and frankly the cfls don't seem to last long in that environment of lots of on/off with short duration.  The other thing that was brought to my attention by my brother in law is fairly obvious.  I noticed they had lots of recessed lighting in their huge house and it was all incandescent.  I said to him he must have 3KW of lights on at one time, isn't that a lot of heat waste?  He pointed out we live in the north where 8 months of year you have the heat on anyway and all the heat "lost" is doing is displacing heat the furnace would otherwise need to provide.  Oh, point taken.  Nonetheless the other 4 months when the air conditioning is on it creates a double whammy waste the heat then waste more power to remove said heat.  Still the total energy cycle needs to be considered.
 
2013-10-26 02:13:54 PM
So what?
Glowglobes? About damn time!
 
2013-10-26 02:32:43 PM
I just have one of these guys follow me around at night

img.dailymail.co.uk
 
2013-10-26 02:45:29 PM

dbirchall: Nice to see LED technology continuing to march on, especially since the coming phase-out of mercury will probably be sending CFLs the way of incandescents.


Hopefully, by the time my CFLs eventually die out, the LED bulbs will be really cheap.

/ has way too many CFL bulbs in storage
 
2013-10-26 02:59:51 PM

brandent: He pointed out we live in the north where 8 months of year you have the heat on anyway and all the heat "lost" is doing is displacing heat the furnace would otherwise need to provide.


First off, recessed lighting tends to destroy the insulation envelope in a house (reducing the efficiency of insulation), second off, electric resistance heating is far less efficient than a natural gas furnace
 
2013-10-26 03:07:36 PM

Forbidden Doughnut: dbirchall: Nice to see LED technology continuing to march on, especially since the coming phase-out of mercury will probably be sending CFLs the way of incandescents.

Hopefully, by the time my CFLs eventually die out, the LED bulbs will be really cheap.

/ has way too many CFL bulbs in storage


I must be the only one who isn't stocking up on CFLs and LEDs. Maybe it's because the prices have gone nowhere but down, but I just haven't seen the need to stockpile them.
 
2013-10-26 03:13:14 PM

Noah_Tall: They are also great because I'm at the end of a power line so I get surges all the time.


Have you been told that? I am at the end too and never had one surge going seven years now. Had a brown-out before, five years ago or so that didn't hurt anything...
 
2013-10-26 03:27:02 PM

StrikitRich: Still have plenty of the incandescents for reading light.


Just get CFLs/LEDs whatever that have a color temp like 2300-2600K. The so-called "daylight" ones are in the 5000K range which is very blue, and I agree nasty for about any application. For some reason "daylight" to these people is a winter day with solid cloud cover.

I have all 2300K CFLs and if anything they're warmer white than standard incandescents, very pleasant to read and work by.
 
2013-10-26 03:39:10 PM

OregonVet: Noah_Tall: They are also great because I'm at the end of a power line so I get surges all the time.

Have you been told that? I am at the end too and never had one surge going seven years now. Had a brown-out before, five years ago or so that didn't hurt anything...


Nope, haven't been told.  See it all the time though.  Well I used to see it all the time that is.  Incandescent lights will all get brighter or dimmer for a second a couple times a week.
 
2013-10-26 03:58:25 PM
i have some incandescent that are still going after 15 years,
CFL last only a few years, esp. in kitchens
 
2013-10-26 03:59:58 PM

bmwericus: I bought three cases of 100 watt bulbs, just in case.  Now that my entire house in LED and CFL [with the exception of the outdoor floodlight on a motion sensor], I sort of wonder what I'll do with 'em.

Maybe I'll hold onto them for another 95 years, then I can sell 'em in an antique store.


You can probably sell them to the CFL-haters for way more than what you paid for them.
 
2013-10-26 04:03:46 PM

clkeagle: Quantum Apostrophe: clkeagle: What am I supposed to be seeing? The 60W replacements are are $80 for a case of 6 on eBay, $75 for a case of 6 on Home Depot's website.

Are you kidding?

What am I supposed to be outraged about? You're obviously making a point, but I have no idea what it is.


Are you this dense in real life too? The point is there is no way you'll pay that much for a LED light on eBay unless you look for the expensive stuff on purpose.

Am I as clear as a 6500K Bright White LED lamp now?

http://www.ebay.com/itm/E27-White-High-Power-LED-Light-Bulb-Energy-s av ing-Globe-Lamp-720LM-60W-/190609698212?pt=US_Light_Bulbs&hash=item2c61 392da4
 
2013-10-26 04:22:15 PM

brandent: Snarcoleptic_Hoosier: I replaced all the bulbs I use regularly (bedroom, kitchen, bathroom, etc) with CFLs, but the small areas that I only need light for small bursts (like a storage room), I kept the incandescent ones. Why spend $5-$7 on a bulb that will only get turned on every once in a while, and for less than 10 minutes?

Also, lots of well insulated windows help too.

You're right.  It doesn't pay and frankly the cfls don't seem to last long in that environment of lots of on/off with short duration.  The other thing that was brought to my attention by my brother in law is fairly obvious.  I noticed they had lots of recessed lighting in their huge house and it was all incandescent.  I said to him he must have 3KW of lights on at one time, isn't that a lot of heat waste?  He pointed out we live in the north where 8 months of year you have the heat on anyway and all the heat "lost" is doing is displacing heat the furnace would otherwise need to provide.  Oh, point taken.  Nonetheless the other 4 months when the air conditioning is on it creates a double whammy waste the heat then waste more power to remove said heat.  Still the total energy cycle needs to be considered.


Even though the incand. bulbs are 90% efficient as heaters, they are still typically more expensive to heat with than a gas-fired furnace heating system.

I mean, it's true that the bulbs give off useful heat in the winter, but it's not a great way to heat a big space.
 
2013-10-26 04:23:38 PM
My wife hates anything but incandescent bulbs. Used to make me take anything else out. I put the new style LED bulbs in the living room lights almost 2 years ago, and she has not  noticed yet. That's how good they are. Turns on right way, uses 1/10 the power, pretty much never wears out. What's not to like.
 
2013-10-26 04:34:18 PM
Quantum Apostrophe : Are you this dense in real life too? The point is there is no way you'll pay that much for a LED light on eBay unless you look for the expensive stuff on purpose.

Considering that these things used to go for $20+ a pop, it wasn't clear in your original post if.

A) You knew they used to be $20-30 a pop, so that "$80 for a case of 6" ($13.33 each) seemed cheap.

or

B) You think $13.33 a piece is still too damn much to pay for these things.

// I was leaning toward B, but it was kind of a tossup.
 
2013-10-26 04:36:32 PM
My province has switched to LED for all new highway lighting.

I think the harsh colour will be good for getting drivers to pay attention to what's coming up, compared to the sissy brown light of high pressure sodium.
 
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