Room lighting - LED?

LRList001

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#1
Does anyone have experience of switching to LED lighting (near daylight colour) for the room in which they run LR? Ie, the light source falling on the computer screen.

If so, good, bad, things to watch out for?

TIA
 

PhilBurton

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#2
I can only speak for LED lighting products in the USA. There are two considerations.

1. Color Temp, in degrees K. 4000 K will look too blue next to incandescent/halogen lighting. 5000 K is "daylight," and should be used only when specifically required. Best K for general indoor is 2700-3000K.

2. "Color Rendition Index." A perfect continuous spectrum of light, similar to sunlight or incandescent light, would be 100. For best results, get LED lighting that is 90 or above. Avoid 80 or below CRI, because a low CRI could produce the same sort of "off color" as fluorescent lighting. A good brand of LED bulbs and lamps is CREE. There are lots of bulbs and lights that will be less expensive than CREE, but for anything photo related, you should avoid them.

Phil
 

LouieSherwin

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#3
I have found that most LED bulbs available in the home improvement stores to be awful at color cast. Almost all of them are horribly blue/green. I may be more sensitive than most as I have been using Solux MR-16 low voltage bulbs for years but it is harder to get MR-16 fixtures.

I have, however found excellent LED bulbs from Sorra. They use a proprietary LED emitter that produces a very clean balanced light. In the past they only had MR-16 and PAR20 and PAR30 replacements but I just now checked their website and see that they now have the A19 screw in type bulb.

They are not cheep but if you value color rendition they are the best.

-louie
 

PhilBurton

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#4
I have found that most LED bulbs available in the home improvement stores to be awful at color cast. Almost all of them are horribly blue/green. I may be more sensitive than most as I have been using Solux MR-16 low voltage bulbs for years but it is harder to get MR-16 fixtures.

I have, however found excellent LED bulbs from Sorra. They use a proprietary LED emitter that produces a very clean balanced light. In the past they only had MR-16 and PAR20 and PAR30 replacements but I just now checked their website and see that they now have the A19 screw in type bulb.

They are not cheep but if you value color rendition they are the best.

-louie
Good post, The company Louie mentioned is Soraa, and yes, they are not exactly inexpensive.

It is entirely possible that the bulb sizes MR-16, PAR20, and PAR30 are US or US/Canadian only. For forum members outside the US, these websites may be of use as a reference:
Light Bulb Base Types | Topbulb
Lightopedia.com - Bulb shapes sizes

Phil Burton
 

LRList001

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#5
I have found that most LED bulbs available in the home improvement stores to be awful at color cast. Almost all of them are horribly blue/green. I may be more sensitive than most as I have been using Solux MR-16 low voltage bulbs for years but it is harder to get MR-16 fixtures.

I have, however found excellent LED bulbs from Sorra. They use a proprietary LED emitter that produces a very clean balanced light. In the past they only had MR-16 and PAR20 and PAR30 replacements but I just now checked their website and see that they now have the A19 screw in type bulb.

They are not cheep but if you value color rendition they are the best.

-louie
Thanks for the info
 
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