Panasonic’s New LED Bulbs Shine for 19 Years

by , 09/15/09
filed under: Design, Green Lighting

sustainable design, green design, energy efficient lighting, everled, led, bulb, panasonic

Despite lasting longer and being more efficient than both incandescent and CFL bulbs, LEDs haven’t caught on because of their sky-high prices. But now Panasonic wants to bring LEDs to the mainstream — at least in Japan — with a 60-watt household bulb that the company claims can last up to 19 years, or 40 times longer than incandescent bulbs.

sustainable design, green design, energy efficient lighting, everled, led, panasonic, bulb

The EverLed series of lightbulbs, scheduled to be released in Japan on October 21, are the most efficient LEDs to ever be produced, with the E26 “daytime light” model using 85 lumens per watt for 40W bulbs and 82.6 lm/W for the 60W bulbs. The E26 bulbs are also lighter than other LEDs by approximately 40g.

Panasonic’s EverLed bulbs still aren’t cheap — they will retail in Japan for approximately $40 — but the new LEDs will shine a light on the technology since Panasonic manufactures 50% of all household bulbs in the country. And while the upfront cost for Panasonic’s LEDs are expensive, the bulbs actually only cost $2 per year to run when their 19-year lifespan is taken into account. Hopefully Panasonic’s EverLed line will help bring that knowledge to the masses.

+ Panasonic


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  1. Dave Malby October 7, 2014 at 1:45 pm

    A LED light bulb can shine bright for a million years but if you drop and break it .. that LED has just died.. (We really need unbreakable LED light bulbs)

  2. wayetlighting March 11, 2011 at 10:37 pm

    Sure, it’s great that they’re really efficient.Wayet lighting co., ltd, wholesales LED grow lights

  3. High Bright November 5, 2010 at 4:36 am

    HI,We are LED Light Manufacturers from Shenzhen China.
    Our WebSite:

  4. danielpower November 8, 2009 at 12:03 pm

    It’s really a good news,and will save more energy,I am planning to buy a led bulb light in a few weeks.

  5. sciencetastic October 1, 2009 at 8:05 am

    Sure, it’s great that they’re really efficient, but the E26 is only 40g lighter than other LEDs?!? Shed another 5g, fattie, and maybe I’ll consider buying you!

    We cover this post on episode 027 of my podcast. Listen for more stunning insights like this at

  6. tweerk September 26, 2009 at 8:04 am

    A normal lightbulb gives light for 2000 hrz, at a constant light-emmision of 100%. Led-light gives light up-to 100.000 hrz, but can loose there efficienty up to 50% in the first 10.000 hrz and faster (than you have 40l/W) with a failure-rate of 50%! When they work for 100.000 hrz, the light efficienty can be reduce to less than 1% (0,85l/W) with a failure rate of 90%. The 10% still work but aren’t usefull anymore! However, led’s are the future, that’s a fact! The technology is geting better every minute, but there are a lot of fairy-tales at this moment!!!

    Another important fact: the figures they present are for the cool-white bulb’s. The efficienty of a Warm-white light-bulb is 2/3 (about (55-65l/W) of the cool-white. The warm-white is the bulb everybody will buy!

    The big manufacturers (Osram/ Philips/ Sylvania) only give a life-time of 15.000 hrz on there ready-made led-bulbs! In this case the led emits 70% of it’s initial light at a failure rate of 80% (= 20% of the led’s are broken!)

    Be critical about the figures of the producents!!! Read the specifications and conditions!

  7. davidwayneosedach September 18, 2009 at 7:46 pm

    The product is great! Maybe the Chinese can mass produce it for those of us who cannot afford $40/bulb.

  8. tisshin September 18, 2009 at 3:02 am

    Let hope we see brighter LED lights to replace a lot of the fluorescent tube lights in many work places.
    My concern is in the colour of these EverLed lights. From the picture, they seen to come in yellow-ish or blue-ish white lights. Are we going back to the days of “warm-white” and “cool-white” lights. This would seem to be a step back now that most fluoro tube lights and CFLs are now tri-fluorescent 6400K ‘natural white light’.

    The only barrier from me embracing LED lights is the colour. LED makes sense financially and environmentally. Once a 6400 kelvin full spectrum white LED lights comes out, I’m on board!

  9. chuckmiller September 17, 2009 at 9:24 pm

    This is nothing new. These bulb’s last 40,000 hours. There are LED bulbs that last 50,000 hours already for sale for the same or less, check out

  10. clumma September 16, 2009 at 6:13 pm

    I think you mean they produce 85 lumens/W to make 510 lumens @ 6W, which is roughly equivalent to the output of a 40W incandescent bulb. (Though it isn’t clear which EverLED model, if any, has precisely this combination.)

    Whoever posted this should consider career counseling. 85 lumens/W is maybe the most efficient drop-in Edison replacement, but certainly not the most efficient LED. Last I checked, Cree XP-G LEDs exceed 160 lumens/W in the R4 flux bin.

  11. September 16, 2009 at 12:15 pm

    Looking at some average prices for lightbulbs and electricity, you could be spending the $40 already with regular lightbulbs in 5 years, and you still have to take the time to replace them over that time. The EverLEDs also seem to beat out CFL bulbs as they could cost you about $56 over the 19 years.

    Even though people may have some sticker shock for the EverLEDs, hopefully they will realize all the savings later on.

  12. Kirsten Corsaro September 15, 2009 at 12:41 pm

    It does seem like it would be difficult to convince people to spend that much on one bulb, but it’s cool technology. I’ve heard that 25% or so of the electricity in the world goes into lighting… improvements like LEDs can make a big difference.

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