Energy Efficient Lighting

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A forum for energy efficiency associated with lighting. New construction practices, retrofit practices, legislation, utility incentives, trends, resources, technology and... more »

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Most Popular Discussions

Timothy

How soon do LED Replacement tubes produce an ROI?

Compared to traditional indoor, general lighting sources, how quick does an LED replacement tube produce an ROI? I say "never, ever, ...

posted 1 month ago

David R. 2 days ago • Edit • Hi Lindsay, I’m sorry, but that statement is completely wrong – there are ... »

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Harish

WHAT CAUSES LED FAILURE BEFORE ITS LIFE SPAN ??? PLS COMMENT....

posted 11 months ago

Daniel D. 2 days ago • Edit • In the case that an LED unit is being under-driven at initial installation time, and then increasingly over-driven towards end-of-life, I (and ... »

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Hiroshi

If a prospect who has 5 years old 3 lamp T8 fixtures want to cut the lighting cost, what do you recommend? Is LED the only way?

posted 26 days ago

Kate R. 2 days ago • Edit • I second Mr. Dovel's comments. ... »

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Albert

LED market grew 10% to $12.5 billion in 2011 optics.org

There was 44% growth in LED lighting market but the total market for LED components will be 'flat' for the next few years.

posted 3 months ago

Dotan B. 2 months ago • Edit • Dotan likes this. »

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Pamela

This is a good basics guide to lighting for manufacturing environments. If you're not familiar with the designlights Consortium you...

posted 1 month ago

Masoud B. 2 days ago • Edit • I like this. Thanks »

Khaled

I'm looking for the requirements to get LEEDS GOLD in a hotel project,any body has a link ?

posted 16 days ago

Edit • »

Joao

Its LED already a good choice for public and road lighting? Would like to share experience and knowledge. Thanks

posted 12 days ago

Tony S. 2 days ago • Edit • the optical lens design is very important, if there is a good lens, it will gives a pretty good light on the road surface, maybe you can have a ... »

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Prudence

LEDs Magazine April-May 2012 online.qmags.com

Distributors make big move toward LEDs

posted 11 days ago

Paulo F. 1 day ago • Edit • Paulo likes this. »

Robert

There will be zero tolerance for promotions or jobs under discussions! Content deletion and group expulsion will occur!

posted 12 days ago

Ronny V. 3 days ago • Edit • Ronny likes this. »

Peter

Flourescent Fittings - High Failure Rate

I'm looking for advice on faulty fluorescent fittings.

We installed 20 fittings in a office environment 4 years ago and have had a 50% ...

posted 2 months ago

Tara L. 6 days ago • Edit • Tara likes this. »

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Sam

Outdoor use of T5 Lamps?

It was my understanding that T5 lamps will perform best in areas where the ambient temperature can be maintained. ie offices and air ...

posted 1 month ago

Frank A. 2 days ago • Edit • As Jim pointed earlier, T5/HO Amalgam is the answer for some extreme temperature applications. They will maintain 90% of its lumen output over ... »

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