Green Lighting 101: Your Guide to Energy Efficient Interior Lighting

by , 01/31/11

oled lamp, sustainable design, green design, energy efficient lighting, green lighting, eco lighting, led light bulb, cfl, compact=


OLEDs, or Organic Light Emitting Diodes, are made from flexible organic materials that can be placed in almost anything. However, this technology is still in the early stages of development. Currently OLEDs are more prevalent in technological applications, such as flexible screens and TVs, but goes comes without question the future is bright for this technology.

sustainable design, green design, energy efficient lighting, green lighting, eco lighting, led light bulb, cfl, compact=

Natural Daylight

For obvious reasons, natural daylight is the greenest way to illuminate any space. For most people this can be achieved through strategically placed windows and skylights, but not every space has the same direct access to the sun. Fortunately, there are several different technologies that do not require direct sunlight to function, but still remove electricity from the picture. Light transmitting systems place a light gathering receptacle on your roof which uses fiber optics to redirect the natural sunlight into your home or other spaces.

Increased natural daylight can also be achieved with mirrored devices (also known as heliostats) that redirect the sun’s rays from your lawn or garden into your home. A single heliostat directed through a window or skylight can deliver the equivalent of 40 100-watt incandescent bulbs. Both of these options are a great way to add light to any dark room, but as you can imagine, neither option works after the sun goes down.

Philips Lighting Company

Philips has always been at the forefront of green thinking and design innovation. They’re a leading innovator of lighting technology that saves energy, carbon and offers a higher quality of light so that we can all enjoy a greener future. Their recently released A19 AmbientLED maintains a light output of 800 lumens, while using just 20% of the energy consumed by a standard incandescent bulb. All of their green products reduce costs, energy consumption and CO2 emissions. They offer a significant environmental improvement in one or more of our green focal areas: energy efficiency, packaging, hazardous substances, weight, recycling and disposal, and lifetime reliability. Purchase the 12.5W AmbientLED bulb at any Home Depot location or by visiting them online here.

+ $39.97 at Home Depot

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  1. Bill486 June 23, 2011 at 9:06 pm

    Great effort for efficiency!!

  2. lkohan March 21, 2011 at 4:14 pm

    I find your article informative, but I would like to add a couple of comments about your information on natural day-lighting. Heliostats are a mainly a commercial “concentrator” technology used for heating as well as lighting and are usually mounted on flat roofs.

    A major, and highly affordable natural day-lighting technology which you did not mention are solar tubes (aka tubular skylights, solar pipes, sun pipes, etc.). A solar tube uses a clear dome that passes sunlight through highly a reflective tube that then diffuses the natural light into a space. They resemble round ceiling-mounted light fixtures (with no switch), and are great used in hallways, closets, bathrooms, kitchens, etc. They are inexpensive (on the order of a few hundred dollars or less), and do not alter your roof structurally, since they fit between the attic rafters. While this technology has been around for about 20 years, it only improves, and comes down in price. Solar tubes are a great way to bring in natural light to areas where windows are not feasible. It’s hard to walk by these and ignore the impulse to turn off a light switch.

  3. greenlivingguy February 2, 2011 at 11:36 am

    Hello all. My first comment on this site. Yeah!! Anyway, for further reference, please consider checking out my book Green Lighting with McGraw-Hill. As it says on the site and book:
    Flip the switch to energy-efficient lighting

    This do-it-yourself guide makes it easy to upgrade residential and commercial lighting to reduce costs and environmental impact while maintaining or even improving the quality of the lighting. Filled with step-by-step instructions, Green Lighting shows you how to save money and energy with light-emitting diodes (LEDs), compact fluorescent lighting (CFL), solar lights, windows, skylights, fixtures, controls, and other bright ideas. Methods for calculating return on investment, plus recommended sources for energy-efficient products, are included in this practical resource. Thanks!!!

  4. joppe January 24, 2011 at 3:02 am

    “a 23 watt CFL can produce about 100 watts of light”

    no, it can’t. i presume you meant to say “about the same amount of light as a 100 watt incandecent”

  5. solidapollo January 23, 2011 at 2:39 pm

    “Why do the LED bulbs I have in my light fixtures at home glow at night even with the light switch turned off? Am I wasting electricity or is there something wrong someplace?”

    The reason they still shine is the following:

    1. You have a dimmer in the wall.
    2. You have a timed switch, like timed switches in bathrooms.
    3. If the answer is NO to number 1 and 2 it is because the phosphur in the LEDs is still excited and it take a couple of minutes to loose the “excitment”.

  6. solidapollo January 23, 2011 at 2:36 pm

    Hi Pierre F:

    That is because you have not seen good quality LED lightbulbs. Light is exactly like incandescent, you can even notice the difference.

  7. Pierre F. Lherisson January 22, 2011 at 4:36 pm

    I still prefers the 100 watts incandescent light bulbs for reading because they are much brighter

  8. AGAPETUS January 22, 2011 at 12:13 pm

    Why do the LED bulbs I have in my light fixtures at home glow at night even with the light switch turned off? Am I wasting electricity or is there something wrong someplace?

  9. DORGD January 20, 2011 at 2:19 pm

    guess what you have to do if you break one in your home??? 3 pages of instructions because they contain MERCURY!!! But don’t eat fish with mercury in them but go ahead and put these all over hour home!

  10. itz4me515 January 20, 2011 at 2:10 pm

    Why didn’t you cover cold cathode lighting?

  11. solidapollo January 20, 2011 at 1:31 pm

    LED Lighting has more uses than you can imagine. For example, LED are being installed in carpets.

    Look here to see what I mean:


  12. Charly January 19, 2011 at 7:22 pm

    Hello! I saw this LED lamp first in a documentary called “Buy, discard, buy”, it shows how lamps and many other products are designed to fail in a determined time of use, wich is called “planned obsolence”. I let all of you here the link:

    (it’s in spanish, didn’t found it in english)

  13. kdalnation January 19, 2011 at 2:08 pm

    Great article! I had no idea how much I didn’t know about green lighting. Time to get my home up to par.

  14. Andrew Michler January 19, 2011 at 1:28 pm

    Living off grid lighting take up 40% of my energy budget- LEDs are going to make a huge difference.

  15. David Brodeur January 19, 2011 at 1:22 pm

    A great guide for the lighting newbies out there, I can’t wait for those OLEDs to become more commonplace!

  16. Rebecca Paul January 19, 2011 at 1:12 pm

    This article is great! I’ve definitely found myself lost from time to time when it comes to eco friendly lighting. This post is informative and easy to understand. Excellent work.

  17. Kestrel Jenkins January 19, 2011 at 1:09 pm

    brilliant post. the explanations of lighting terms help clarify some of the specifics i was a bit fuzzy about. history aspects are super interesting as well.

  18. Jessica Dailey January 19, 2011 at 1:08 pm

    The OLEDs look really cool — seems like they would be perfect for street lights!

  19. Diane Pham January 19, 2011 at 1:05 pm

    thanks for this post dan! this is great guide for people who are looking to change out their bulbs and don’t know what their choices are!

  20. Jasmin Malik Chua January 19, 2011 at 1:04 pm

    This is infinitely helpful—thank you!

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