HOW TO: Switch Your Light Bulbs And Get Ready for the Big Light Bulb Phase-Out

by , 05/18/12

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When replacing an incandescent bulb, you basically have two options to choose from – CFLs (compact fluorescent lamp) and LEDs (light-emitting diode). In the past, CFL bulbs were more widely used, because they were cheaper, but nowadays, the price of LED bulbs has come down substantially, and the quality of light has improved drastically through new technological innovations. Despite still being more expensive, LED bulbs have many advantages over CFL bulbs that make that price tag well worth it; they consume less energy and last much much longer than CFLs (up to 20 years!), so any extra money you pay up front is recouped on your energy bill, and when you don’t have to purchase new bulbs every year. On average, an LED light bulb is roughly 3 or 4 times more expensive than a CFL but think about it this way – if you install an LED lamp in your new baby’s bedroom today, you most likely won’t have to buy a new one until after they go off to college! LED lightbulbs also don’t have any mercury in them – unlike CFLs, which can create a hazardous waste site if you accidentally break one in your house. Finally, LED bulbs can be used with dimmers – unlike most CFL bulbs.

One of the lamps above uses an incandescent and the other uses a Philips LED. Can you tell the difference?


Taking a stroll down the lighting aisle of a store to find incandescent bulb replacements can be intimidating because there are so many shapes and sizes, and the vocabulary on the packaging can be confusing. But pinpointing a few specific points about what you’re looking for can make this task a lot easier. The first thing to ask yourself is what type of light bulb are you looking to replace – a standard A-shaped lamp bulb, a floodlight, a “candle” in a chandelier or something else like a landscape light or a night light? Most of the time, LED versions of all of these types of bulbs closely resemble their incandescent counterparts in size (though the shape might be slightly different), so it’s a good idea to bring the bulb (or “lamp,” if you want to use the term lighting professionals use) with you to the store so you can actually hold it up to your prospective replacement and make sure the bases are the same size.

LED Replacement Bulb Chart, Find The Perfect LED Replacement For Your Old Bulbs, LED Light Bulb, 60W Incandescent Replacement, 12.5W AmbientLED Bulb, 15W Incandescent Candle Replacement, 2.5W DecoLED Candle, 50W Par20 Halogen Bulb, 7W AmbientLED Par20 replacement bulb, LED light bulb replacement chart, how to replace your old bulbs with LEDsInfographic by Jill Fehrenbacher


Here are some of the most common examples of incandescent and halogen bulbs, and the LED replacements that are designed to mimic them: For a table lamp or other fixture that uses a 60-watt incandescent bulb, you can replace it with a Philips 12.5 W AmbientLED A19 to save approximately $130 in energy costs over the lifespan of the bulb. For a chandelier or other 25-watt candelabra-style bulb, try replacing it with a Philips 3.5W DecoLED Candle for an approximate savings of $59.13 in energy costs over the lifespan of the bulb. Another common energy-sucking bulb, the standard 50-watt PAR20 halogen bulb (commonly used in recessed ceiling lights) can be replaced with the Philips 7W AmbientLED PAR20 for an approximate savings of $118.25 in energy costs over the lifespan of the bulb.

For other types of incandescent and halogen bulb replacement options, check out this handy-dandy chart:

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The next thing to check for is the “light appearance,” or color temperature of the light bulb you’re replacing, which is measured on the Kelvin (K) temperature scale. The higher the Kelvin number is, the more blueish white the light will be and the lower it is, the more yellowish it will be. Most light bulbs will be labeled with the type of light appearance they emit (soft, white, bright, warm, daylight) – although those words are often vague and hard to understand, so you’re better off just looking specifically at the Kelvins. The traditional incandescent, which gives off a warm yellowish light, has a temperature of 2,700 to 3,000K — similar to most halogens. Newer CFLs have a wider range, from warm (3,000K) to cold (6,500K). LED bulb temperatures can range from 2,700K to 5,000K, and while previous generations of light-emitting diodes tended to have a very blueish light, there are now LED replacement bulbs on the market (such as Philips’ AmbientLED line) which mimic the color temperature and “feel” of incandescent bulbs exactly – producing warm white light. Since light emitting diodes inherently shine blue, the way the Philips AmbientLED bulbs do this is through their patented orangey-yellow lens casing surrounding the LEDs (see below diagram).

Philips AmbientLED, remote phosphor technology, LED light bulb, how does an LED lightbulb work, look inside an LED light bulb


Once you have considered light bulb type and color temperature, you’ll also want to consider light bulb brightness, which is measured in lumens for LEDs and incandescent bulbs (weirdly, halogen bulbs tend to be measured in “candelas“) A bulb’s lumen measurements are always displayed on its packaging, so you can easily find out how bright the bulb you’re buying is.

Many people still confuse wattage (a measure of electrical energy used) with lighting brightness – but in this day and age of low-energy LED and CFL lightbulbs, don’t be confused by wattage. A traditional 60W incandescent bulb shines at about 800 lumens – the exact same brightness as a Philips’ 12.5W LED bulb or a 14W CFL bulb.


One of the most asked questions regarding LED bulbs is whether or not they work with dimmers, and the answer is yes (most CFLs do not)! So if you have dimmers and want to continue using them, go ahead and choose an LED bulb.


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  1. Sandra Razieli February 18, 2015 at 12:36 am

    I am very sensitive to the cool/ blue light. I get migraines and lose my ability to focus. I need to be in a Kelvin rate of 2700 or below to feel okay. Unfortunately that’s just on the edge of what’s available with LEDs and I have yet to find one that works for me. I wonder how many other people have this issue. Also, if anyone wants to get rid of their incandescents, I’d be happy to take them.

  2. Steven Sherman February 15, 2014 at 4:07 pm

    If you want to upgrade your lighting system to efficient LEDs without the up-front costs, consider joining the Dollar LED Club. For just a $1/bulb/month you can lease high quality LEDs. After two years the bulbs are yours and you continue to save.

  3. Dawn Redman January 2, 2014 at 8:10 pm

    I will not buy CFL’s. 1) They all contain mercury and most people don’t read the warning on the label that says you must bring blown out CFL’s to a hazardous waste facility. that means most of the CFL’s go right into our landfills. Not good 2) the vast majority of CFL’s are made in China. I prefer to buy products made in the U S. 3) My observation is that if you leave a CFL on all the time it will last a very long time, but if you turn it on/off whenever you enter/leave a room (I do) it won’t last much longer than a traditional incandescent bulb. 4) I use dimmers for most of my lights so that I can reduce the light and energy I use as needed. LED’s are a much better option, in my opinion, but the light they produce is cold and less bright.

  4. Dr. K. December 24, 2013 at 4:32 pm

    Many people – I’m one – use dimmer switches so that we can reduce both the desired brightness at any given time and energy consumed. My 40 watt bulbs last a long time and are energy efficient thanks to the dimmer switches. The catch re LED: can’t use dimmers with them, so we who have been helping reduce energy consumption all along, as well as enjoying a continuum of light, from very low to full strength, will be out of luck.

  5. jchastn December 24, 2013 at 2:28 am

    Are Halogen bulbs considered “traditional incandescent”bulbs? They do produce more light with less energy. Are they going to be phased out?

  6. cagefreeg November 14, 2013 at 5:29 pm

    To your comments re: High Tech Options for LED Light that mimic certain features that are preferable from incandescent bulbs, I found the following at

    I’ll paraphrase;

    >>Four 60-watt-equivalent CFLs, four 100-watt-equivalent CFLs, 12 incandescent candle bulbs for dimmable ceiling fixtures, and six 100-watt reflective PAR38 halogen bulbs in the recesses of our kitchen. Yes, those last ones are rather bright. I mention that because I think it realistically represents how people really live, often choosing comfort or preference in small ways over a cost benefit or a sense of environmental obligation.

    That’s roughly $55 in bulbs with no real LED equivilent for the halogens. But even if we were to just replace the rest with 12/60-watt LEDs, 17/75-watt LEDs, and 2.5/15-watt LED candle bulbs it still comes to $371.40!!!<<

    When I see the recommendations that you've made here and then see the associated costs I immediately think of my retired mother on a fixed income collecting social security and a small pension. I think of my daughter who collects a small state assistance stipened and child support to make ends meet. I think of my son with with two small boys who he provides for… and then I return to the disingenuous 'spin' that you've put on these high-tech alternatives and the convenient omissions regarding their cost… and I have to wonder what your real motivations are…

  7. ep4169 December 6, 2012 at 11:17 am

    What’s the difference between a phase-out and a ban? Effectively, nothing. In a couple of years I will no longer be able to buy traditional incandescents. That’s a ban.

    Why shouldn’t I be free to choose incandescents if I prefer them? The additional money I supposedly spend on them will help fund our supposedly strained energy grid.

    It’s time for the regulation busybodies in this country to get off our backs and let us live our lives the way we choose.

  8. freethinker July 30, 2012 at 6:46 pm

    Another issue for renters: Don’t forget to take any CFL or LED bulbs that you installed in permanent light fixtures with you when you move! Otherwise you’ll never see the full potential cost savings.

    I had replaced several hallway, closet, and outdoor bulbs in my former rented home with CFL’s, but I kept the original incandescent bulbs I found in those fixtures. When it came time to move, I placed the old bulbs back in those fixtures. Hey, I spent over $240 on those bulbs! No way I was just going to leave them behind.

  9. freethinker July 30, 2012 at 6:37 pm

    Again, I am in favor of saving energy and using CFL’s whenever possible, but let’s be fair and compare the best CFL and LED technology with the best incandescent technology. My high quality 57, 60, or 71-watt incandescent bulbs cost around $1.50-$2.00ea and last about 18-24 months depending upon the application, not less than a year like the super-cheap store brand bulb shown in the infographic. So that’s about 10-13 bulbs over 20 years, not 21 bulbs.

  10. blockhead May 29, 2012 at 9:44 pm

    Curious…if a CFL bulb lasts approximately 6.6 yrs, why do I have to replace so many that are less than 1.5 years old?

  11. VitiolicMass May 28, 2012 at 8:58 am

    One chart says a 60W bulb puts out 860 Lumens, then your article continues and says that a 6OW LED replacement bulb puts out the same 800 Lumens that a 60W incandescent bulb does…..60 Lumens is a pretty big difference.

    Also all of this is irrelevant because you only mentioned energy savings. I would suspect a lot more people live paycheck to paycheck these days and they would take a $0.25 bulb over a $30 bulb every single time.

    I replaced all of my bulbs with 100W CFL replacements 6500K. $14/ea and they started burning out in less than a year. I should have just gotten cheaper bulbs that last the same amount of time.

  12. Jill Fehrenbacher May 18, 2012 at 11:07 am

    Hi Tcutri-

    Did you read the above article? Depending on how many lightbulbs you have, you’ll save $200-$1000 a year in energy costs every year with LED bulbs + you only need to buy LED bulbs once, since they last 22 years, meaning you easily make the initial upfront cost back in a matter of months.

    LED bulb prices will gradually drop as demand increases and economies of scale kick in, but it is going to be like computers and cell phones – it will take time.

  13. tcutri May 17, 2012 at 3:48 pm

    I would have to take out a 2nd mortgage to replace all the bulbs in my house. No doubt there is an energy savings but from a life cycle cost standpoint it still doesn’t make sense. What is the prognosis on the future drop in LED prices?

  14. Lawrence Grown May 12, 2012 at 2:11 pm

    I prefer the Lighting Science Definity A19 bulb, but Philips’ Ambient is excellent for most A-lamp replacements.

  15. RustyDogma May 5, 2012 at 2:47 pm

    I ordered a bunch of LED bulbs, and when I got them the box was was labeled ‘do not use in enclosed fixtures. Almost every fixture in my house is enclosed, so I’m not sure what to get.

  16. GreatEmerald May 4, 2012 at 11:11 am

    kjacquin: You are forgetting the energy savings… It’s a 24-pack of 60Ws versus one 12W LED. That means five times less energy consumption, so after 20 years it will have more than paid back.

  17. tony myers May 3, 2012 at 3:34 pm

    I started replacing my CFL’s with LED’s 5 years ago. My utility bill went down 40%. Energy consumption went down 30%. At that time LED’s were about $50 each and were not dimmable. Now you can buy some for $20 each that are dimmable.

  18. Hazel Saunderson May 3, 2012 at 10:31 am

    This is great! I think with the soaring energy cost, making little changes like this should be on everyones mind. However, your phase-out timeline and handy facts should give them even more reason to make the big switch.

  19. BrilliantLD May 3, 2012 at 10:23 am

    Perhaps some will be interested to read about these recent lamp / bulb comparisons…

  20. kjacquin May 3, 2012 at 9:12 am

    I am all about saving where I can. The issue is that the energy bulbs are still expensive. The images show 21 normal bulbs for 20 years and 1 LED for 20 years. Out of pocket cost is still way different. I can get a 24 pack of 60W incandescent bulbs under $15 when 1 LED is around $25+/-. Once I see the price lower I will be happy to switch.

  21. Nicole Abene May 2, 2012 at 7:20 pm

    I love that you point out that energy-efficient bulbs can give off warm lighting – no more excuses to stop buying incandescent!

  22. JasminMC May 2, 2012 at 5:35 pm

    Great tips, thanks!

  23. jkgreen May 2, 2012 at 4:18 pm

    This is a great guide – I’ll have to start swapping my bulbs.

  24. MargaretD May 2, 2012 at 3:55 pm

    thanks for this! i’m definitely going to make the switch, it saves money & energy!

  25. Andrew Michler May 2, 2012 at 3:48 pm

    Just bought a 10 watt Phillips L_prize bulb with the local utility taking $20 off.

  26. Mark Boyer May 2, 2012 at 2:25 pm

    Very useful info. I’m anxious to try the Philips AmbientLED.

  27. catmcpants May 2, 2012 at 2:18 pm

    Great tips. Planning on decking out my lighting fixtures with LEDs.

  28. nathanielross May 2, 2012 at 2:01 pm

    Great post! Important for everyone to learn about… spreading the word!

  29. Rebecca Paul May 2, 2012 at 1:49 pm

    Wow super informative and helpful I’ve been trying to make the switch myself, and this makes things a lot easier.

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