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LED Lightbulbs
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Jun 25, 2015 13:25:38   #
houdel Loc: Chase, Michigan USA
 
I converted most of my fixtures to CFLs a few years ago and am now converting to LEDs. I bought a few 6W actual/50W equivalent 3500K LEDs a while back. Those were the only ones available at the time. Now that here are more options + 5000K bulbs on the market I may start replacing the CFLs. IMHO, CFLs suck. As already mentioned they are slow to start & take time to reach full output. Last winter I had to replace the CFL in my porch fixture with a LED bulb because it got cold enough that the CFL wouldn't turn on at all. And I have already had most of my original contingent of CFLs burn out after three years or so, about the same life as the incandescents. So much for "long life"!

I did find that neither CFLs or LEDs work well with my outside photo sensor controlled fixture. They had a high frequency flicker like you sometimes get with the 48" fluorescent tubes, and after about a week they would not turn on at all. The bulbs were fine - they would work in other fixtures, just not the photo sensor controlled fixture. After several bulb swaps they finally fried the photo sensor so the fixture is now a constant on fixture, but at least the bulbs work in it now!

I also had to replace the 18" fluorescent fixture over my kitchen sink recently. Found a hard-wired 18" multi-LED fixture on Amazon but still only 6W actual/50W equivalent 3500K. I would have preferred more light & 5000K but it was the best I could do for what I was willing to pay. It works fine though.

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Jun 25, 2015 14:13:21   #
jackm1943 Loc: Omaha, Nebraska
 
I bought two LED safelights from Adorama for my darkroom 15 years ago. They put out a surprising amount of light and absolutely will not expose print paper, at least b&w print paper. Never tested them with color paper.

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Jun 25, 2015 14:26:20   #
John_F Loc: Minneapolis, MN
 
My interest in LED lighting would hinge on correcting White Bakance. Most cameras enable WB settings for the type of illumination; sun, sky, incadescent, flourescent, flash, etc. I looked in the WB options in my Sony a6000 and there was no LED option - there were 4 flourescent options. As we know flourescent itself is a line spectra that activates tube phosphores that spreads the spectra. What do we know about LED spectra: discontinous line or continuous (with a definable color temperature) or some admixture. To my untraibed eye I seem to sense a soectra that is rich in the short wavelengths. Would this mean that red-yellow-green objects to seem too dark?

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Jun 25, 2015 15:50:22   #
houdel Loc: Chase, Michigan USA
 
John_F wrote:
My interest in LED lighting would hinge on correcting White Balance. Most cameras enable WB settings for the type of illumination; sun, sky, incandescent, fluorescent, flash, etc.

I take a lot of photos at indoor venues often with mixed lighting. Rather than get too technical about the lighting, I take a simpler approach. I take sample photos with differing WB presets and view them on my monitor, then select the WB that gives me the most pleasing image.

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Jun 25, 2015 16:07:47   #
John_F Loc: Minneapolis, MN
 
My Sony a6000 did have a "custom" WB option but I am not skilled enough to use it properly. Would a sample shot of a white card and an 18% gray card under exclusively LED illumination help?

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Jun 25, 2015 16:29:15   #
houdel Loc: Chase, Michigan USA
 
John_F wrote:
Would a sample shot of a white card and an 18% gray card under exclusively LED illumination help?

I guess that would be the technically correct if somewhat more complicated solution. I have no desire to carry a 18% grey card around with me everywhere I go just in case I run into some oddball lighting situation. I find it easier to take test shots with different WB settings & pick the one that looks best. Maybe if I were shooting commercial photography I'd go the extra step, but I shoot in RAW so I can tweak WB in post if I need to. Not that I've felt a need to, but I generally adjust hue and saturation in post for aesthetics anyhow.

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Jun 25, 2015 20:44:54   #
nicksr1125 Loc: Mesa, AZ
 
John_F wrote:
My interest in LED lighting would hinge on correcting White Bakance. Most cameras enable WB settings for the type of illumination; sun, sky, incadescent, flourescent, flash, etc. I looked in the WB options in my Sony a6000 and there was no LED option - there were 4 flourescent options. As we know flourescent itself is a line spectra that activates tube phosphores that spreads the spectra. What do we know about LED spectra: discontinous line or continuous (with a definable color temperature) or some admixture. To my untraibed eye I seem to sense a soectra that is rich in the short wavelengths. Would this mean that red-yellow-green objects to seem too dark?
My interest in LED lighting would hinge on correct... (show quote)


You be able to use incandescent or daylight WB settings with LED bulbs depending on what color temperature they are. Most come in 2700-3000K. Our bulbs at Batteries Plus come in 2700K, 4000K, & 5000K. One of the WB settings on your A6000 should come close enough that a minor tweak in PP should take care of any color cast. I'm not sure whether the spectrum is continuous or not. They're just a bunch of glowing LED chips.

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Jun 25, 2015 23:53:16   #
billybob40
 
Jerry I get 4 for $20. shipped, on ebay.

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Jun 26, 2015 00:46:13   #
arlissd
 
jerryc41 wrote:
I've replaced most of the bulbs in my house with LED's, and I'm pleased with the results. They are brighter than the fluorescents they replaced, and they'll probably outlast me. Amazon had a pack of six for $31, so I got two. Two days later, the price had risen to $43. Good timing on my part.

These bulbs use only 9.9W, compared with 23W for the CFL's. Have any of you gone 100% LED?


Costco have LED

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Jun 26, 2015 02:43:07   #
Collie lover Loc: St. Louis, MO
 
tradio wrote:
I'm in the process of converting. The problem with the CFL's was they take a while to come up to full brightness and if you did not let them fully warm up, their life was cut short.


Another problem with CFLs is that they contain mercury and have to be disposed of in a safe manner. Can't just toss them in the trash like old light bulbs. I don't want anything with mercury.

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Jun 26, 2015 08:58:14   #
Chris F. Loc: San Francisco
 
Yes, and surprisingly enough we have found a pretty nice selection that are priced low at Costco. We've converted almost everything now and my electric bill shows it.

Chris

jerryc41 wrote:
I've replaced most of the bulbs in my house with LED's, and I'm pleased with the results. They are brighter than the fluorescents they replaced, and they'll probably outlast me. Amazon had a pack of six for $31, so I got two. Two days later, the price had risen to $43. Good timing on my part.

These bulbs use only 9.9W, compared with 23W for the CFL's. Have any of you gone 100% LED?

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Jun 26, 2015 09:00:09   #
Chris F. Loc: San Francisco
 
Yes, and surprisingly enough we have found a pretty nice selection that are priced low at Costco. I even converted the ballasts in a few shop lights in the garage to accept LED tubes. They are bright! We've converted almost everything now and my electric bill shows it.

Chris

jerryc41 wrote:
I've replaced most of the bulbs in my house with LED's, and I'm pleased with the results. They are brighter than the fluorescents they replaced, and they'll probably outlast me. Amazon had a pack of six for $31, so I got two. Two days later, the price had risen to $43. Good timing on my part.

These bulbs use only 9.9W, compared with 23W for the CFL's. Have any of you gone 100% LED?

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Jun 26, 2015 19:01:34   #
hj Loc: Florida
 
DirtFarmer wrote:
Mostly I bought the 60W bulbs, but I have a couple of 100W versions. I got the 100W LED lamps for around $10 each....


Can you tell us where you got 100W LED bulbs for about $10. Best I can find seems to be approx $20 each.

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Jun 26, 2015 19:30:59   #
nicksr1125 Loc: Mesa, AZ
 
Collie lover wrote:
Another problem with CFLs is that they contain mercury and have to be disposed of in a safe manner. Can't just toss them in the trash like old light bulbs. I don't want anything with mercury.


To be fair, CFL's do contain mercury. But, it isn't the silvery liquid we played with as a kid. There is less than an amount that would cover the head of a pin in each one. They should be recycled. Some communities require recycling. Batteries Plus Bulbs accepts all bulbs & batteries for recycling.

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Jun 26, 2015 19:58:11   #
DirtFarmer Loc: Escaped from the NYC area, back to MA
 
hj wrote:
Can you tell us where you got 100W LED bulbs for about $10. Best I can find seems to be approx $20 each.


I got them at Home Depot a few months back. It might have been a promotional.

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