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143 Comments
- inactive, on 11/10/2007, -6/+57Great idea but they need to turn them down a bit... they look like they would hurt my eyes after 5 minutes.
- inactive, on 11/10/2007, -2/+41This comment was created for everyone who thought (at first), that dawhite was talking about computer parts
- dawhitie, on 11/10/2007, -10/+46All I know is I hate drivers that use LED lights... blinding
- inactive, on 11/09/2007, -3/+37I love how nearly everyone in this article is being buried for saying stupid things, myself included probably
- Smwbigboss, on 11/11/2007, -5/+39I see you never leave the basement either.
- TomFrost, on 11/10/2007, -2/+29The best option is for your monitor to not NEED backlighting. Rather, the monitor's display would be *made* of LEDs. Look up OLED displays :)
- fuzzmeister, on 11/10/2007, -7/+34Assuming the light they are producing is full-spectrum, it would be great to have LEDs instead of fluorescents/incandescents. However, if it's just a harsh white light, that would be annoying as hell.
- nerdmods, on 11/09/2007, -9/+27LEDs actually do not seem to hurt my eyes as much as other lights, as they are more constant, its the BLINKING that gets to me.
- inactive, on 11/09/2007, -0/+16"white" LED is actually more close to our definition of white [light] colour (sun at noon ~ 5400 Kelvin). Fluorescent lamps have a higher K (around 6.000) and the colour is always changing (between greenish to blueish during very small cycles [hz]).
Also, LED bulbs do not emit UVA/UVB like fluorescent lamps. - skoot, on 11/11/2007, -1/+15I'd love to replace my fluorescent bulbs w/ LED – but they're like $30+ each for decent illumination. Gotta wait till Costco gets the bargain batch.
http://www.google.com/search?hl=en&q=led+light+bul ... - inkyblue2, on 11/09/2007, -3/+16i'm going to blatantly hijack this thread for informational purposes. the office in the article belongs to... surprise, cree! cree is an LED company that makes insanely bright LEDs. their current top of the line XR-E LEDs are *incredibly* bright. as far as i can tell they're the brightest LEDs out there, or at least the brightest ones that you can actually buy from a distributor.
to buy the LEDs individually, this is the best place i've found:
http://www.cutter.com.au/proddetail.php?prod=cut65 ...
and here's a place that sells flashlights based on cree and other high-power LEDs:
http://www.fenix-store.com/
seriously, these things have come a lot farther than you might expect in the past few years. i'm posting all this crap because i was blown away when i started looking into replacing headlights with LEDs. lots of people are building battery powered bike lights with crees; search for "cree beam shots" for some ideas of what they look like.
for home lighting, it seems like the best place to start is with HD11 and HD16 replacement bulbs. see the cutter link. - sparkysko, on 11/09/2007, -9/+21Hurray. Digg is now reddit + 8 hours.
- centran, on 11/09/2007, -0/+12Someone needs to make an inexpensive LED lightbulb and do it soon. I am not sure how much the new powerful LEDs cost but the standard LEDs you can get for ~.10. You need about 60 of those so that is $6. Then there is mounting and circuitry.
However, If you are mass producing these things it should be really cheap to make and you can probably use the new super LEDs that came out a year ago so you don't have to pack 60 in.
I don't think GE and other companies likes the fact of you being able to have a lightbulb that can be on for 10 years so they are going to literally kill any company that attempts to make them. Plus it doesn't make sense in todays commercial world to give people a product they don't have to replace for more then 10 years. Bad business model.
But damnit! I have been waiting for LED lightbulbs for a long time now. - KLowD9x, on 11/12/2007, -0/+11Uhh, no they don't.
Thats called "Pulse Width Modulation". That is how they adjust the brightness of the lights from "not braking" to "braking." - Charlotte_Web, on 11/11/2007, -1/+11It's the pure white light that's hard on your eyes. Look at the Before and After picture, and you can see the difference. The soft, yellow light is easy on the eyes; the harsh, white light is great for taking a photograph, but I'd hate to have to spend a lot of time in it.
- supermanred, on 11/09/2007, -0/+9The future will be a lot darker than in the movies I think.
- coldphoenix, on 11/09/2007, -1/+10It might also simply be due to the exposure. The photograph might simply be making the scene brighter than it actually is, which is often the case.
- Nerys, on 11/09/2007, -3/+12First you talking about HID lights for headlights. And second your not even talking about HID as HID is a PLEASURE to look at. I can stare RIGHT INTO one (from an off angle) and clearly see the glass NO GLARE. what your talking about is the FAKE HID lights ie the "blue lights" people swap into there halogen fixture to "be cool" those suck those hurt and are illegal for good reason.
They are working on LED headlights. Not yet though. - subxero37, on 11/09/2007, -1/+9Some manufacturers already have.
- grrrrrrrrrrrrrr, on 11/09/2007, -3/+11They should build another headquarters, they'd probably double their market share
- joshuaer, on 11/09/2007, -2/+10Do the math it is cheaper, I know is sucks to buy them I just got 2 more today i get 2 every month i only have 4 lights left until i have all LED lighting my place.
Life Span & Energy Consumption Benefits of LED Light Bulbs vs. Incandescent Light Bulbs
Incandescent 60 Watt Light Bulb CC Vivid 2 Watt LED Light Bulb
How long will the light bulb last? 1,000 hours Up to 60,000 hours
Number of bulbs used
over 60,000 hour period 60 1
Bulb Cost
Per 60,000 hours $40.20 (60 bulbs at 67¢ each) $15.00 to $35.00
Electricity Usage
kWh of electricity used over 60,000 hours 3600 kWh 120 kWh
Cost of Electricity
60,000 hours at 10¢ per kWh $360.00 $12.00
Total Cost
After 60,000 hours $400.20 $46.95
Total Savings:
Money saved by installing one CC Vivid LED Light Bulb Save $353.25 Per Bulb! - InfiniteNothing, on 11/09/2007, -2/+10there's a difference between white made of Red Green and Blue and white made of the full rainbow of spectra. The former can make certain things (like people) look a little funny because, for example, an article of clothing is good at bouncing back yellow but not red and green. In this case, a normal white light like the sun or a halogen bulb would light this shirt up but the shirt would be dim under the red, green, blue light.
- rhgtp, on 11/09/2007, -1/+8your office is gay
- Typhoon2009, on 11/09/2007, -1/+8I'd love some LED lighting in my house; bloody expensive though.
- tuzziel, on 11/10/2007, -9/+15Thats nice, now, when they start using those for my monitor backlighting?
- inactive, on 11/09/2007, -0/+6If they dim the blue portion of the LED then the light will become "softer" or more yellow. In the future I think that there will be many color temps available in LEDs. Imagine a dimmer control that allowed you to dim red, green and blue separately. Then you can have ANY color and brightness of light that you want.
- dawhitie, on 11/10/2007, -1/+7you can buy after market as well
- BossKey, on 11/09/2007, -1/+7Have they solved the problem of OLED colors not holding up well over time (fading and shifting)? If they haven't solved that, it would cross OLEDs off the list of anybody doing color-accurate graphics work.
- krnldmp, on 11/09/2007, -0/+6Where do people come up with this *****.
- PleaseJustDie, on 11/09/2007, -0/+5yes, they make LED bulbs (they look like round platters stacked on each other with LED lights all around them) that will screw into standard fixtures. Mythbusters used one as part of the myth that it costs more energy to turn lights on and off versus just leaving them on if you leave a room for a short period of time. LED light was much brighter than any other bulb and used a nearly unmeasureable amount of energy in either the on test or the on/off test.
- suckaPU, on 11/09/2007, -1/+6LEDs are the future of lighting, so get used to it, y'all.
- Nerys, on 11/11/2007, -0/+4actually some of the energy gets use to expand the metal and even more gets used to cause it to emit photons (IE glows red) so even thats not 100% :-)
- CoryDambach, on 11/09/2007, -0/+4What part do you not understand? Or are you alluding to some technical discrepancy implied by their words?
- inkyblue2, on 11/12/2007, -5/+9you mean HID?
- inkyblue2, on 11/09/2007, -0/+4not even LED is as efficient as sodium vapor. those things are still king of the hill when you care about efficiency more than color.
- rockdawg, on 11/09/2007, -3/+7This nation has mulitple weather zones not all areas have "winter".
- connis, on 11/09/2007, -1/+5A rightfully earned pat. We don't need to consume energy wantonly just 'cause we can.
- supermanred, on 11/09/2007, -0/+4Yeah, because when your home heater doesnt work your incandescent bulbs heat you up just fine... uh....NOT!
The heat produced by lightbulbs is miniscule as far as heating your home.
However, I can attest that the heat given off by a macbook power cube is awesome in winter. I put mine somewhere near my feet under the sheets at night in summer. :) - kevnaca, on 11/12/2007, -0/+4The Lexus LS Hybrid has LED headlights. But I'm guessing you really mean Xenon lights on luxury cars.
- BossKey, on 11/09/2007, -0/+4Wrong. MacBooks still use CCFLs.
It's the MacBook *Pros* that use LED backlighting, and that's only the 15" model. 17" panels are not yet available, so the 17" are still LEDs.
It is also important to understand that there are 2 types of LED backlights. One uses white LEDs only. This is the type used in lower-end displays like laptops. The other type of LED backlight uses separate red, green, and blue LEDs. This type is more expensive, but the advantage is that you get an insane amount of control over color accuracy, and some of the most ginormous color gamuts ever seen in a monitor. Simply amazing stuff. Here is a review of such a monitor:
http://www.tomshardware.com/2005/10/28/a_revolutio ...
LEDs are just the right thing to do any way you look at it. - CatalystDM, on 11/10/2007, -1/+4Profit!
- krnldmp, on 11/09/2007, -0/+3I was just about to say that. Lots of poo pooing going on in here from people that don't really know how far LED technology has come and how much further it can go.
- kevnaca, on 11/09/2007, -0/+3True, I have to increase the refresh rate of CRT monitors to 70+ hz because after using LCDs the flickering gets to me now.
- jaymzdean, on 11/09/2007, -0/+3It would depend on how cold your winters are and how hot your summers are. And that largely depends on where you live.
/Captain Obvious - scooby2, on 11/09/2007, -0/+3What is the best place to buy led bulbs? I bought in to CF when they first started ($$$) and its time to move to led.
- inactive, on 11/09/2007, -0/+3:/ In Phoenix (Arizona), we're lucky to even hit 80 in winter now-a-days
- Kwiter, on 11/09/2007, -0/+2My little girls use the hall light as a night light. I saw the CFL's and installed one in that fixture as it WAS a 60 watt and now is a 15 watt. The Color is annoying but the savings I hope is worth it since that light tends to be on from 7 pm to about 5 am daily. Mrs first response when she came home and saw it on..."Whats wrong with the light upstairs" ;-) These LED's any better at getting similar look to incandescent?
Nia:wen kowa Thank you very much - jaewon223, on 11/09/2007, -0/+2I replaced all my bulbs to energy efficient ones and now it's much brighter, saves energy, makes me greener, and it isnt as hot. It might be more expensive although mine weren't that much more in comparison to regular bulbs but they last I believe 5x longer. Why wouldn't you want to use these bulbs???
- PleaseJustDie, on 11/09/2007, -0/+2I have a friend from Wisconsin that calls during the winter to talk about how during this storm with wind chill its almost -30, etc. The reaction and usually the "***** You" I get when I tell him how cold it is here in Arizona and how we got all the way down to 65 is just priceless.
- inactive, on 11/09/2007, -0/+2LED bulbs last up to 5 times more than fluorescent lamps. Perhaps it's not that expensive in the end.
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