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Panasonic debuts 85 lm/W dimmable LED light bulbs

Sep 10, 2009

Panasonic Corporation today unveiled bulb-shaped LED lamps, the latest addition to its EVERLEDS LED lighting products.

The new products use Panasonic's own heat dissipation technology to increase the bulb's energy-efficiency. By applying alumite treatment to the surface, Panasonic successfully increased heat dissipation to lower the temperate of the LED package.

Combining this technology with the design which tightly joins the LED package and the casing, the company has achieved the industry's highest energy efficiency in LED bulbs. The standard type LDA7D-A1 LED bulb, which produces the brightness equivalent to a 40 W incandescent lamp when used without fixtures, has luminous efficiency of 82.6 lm/W and LDA4D-A1, which produces the brightness equivalent to a 30 W incandescent lamp, has luminous efficiency of 85.0 lm/W.

Panasonic Everled LED bulb

When used as a downlight, the 6.9 and 7.6 W standard type LED bulbs deliver the brightness equivalent to 60 W incandescent bulbs. The 4.0 W standard and 5.5 W compact LED bulbs produce the output comparable to 40 W incandescents.

Panasonic LED bulbs are one of the lightest  and most compact in the industry. The standard size E26 base bulb weighs only 100 g and the compact size E17 base bulb weighs 50 g. Industry's first E17 base LED bulbs will easily fit into existing fixtures with which other replacement bulbs did not physically match.

The 7.6 W standard type and the 5.5 W compact type LED bulbs can be dimmed from 10 to 100 percent.

Available in "Daylight" and warm "Lamp" colors, they will go on sale in Japan on October 21. Prices start from 4,000 Yen (US$44) for standard LED bulb and 5,000 Yen (US$55) compact E17 version.

E26 Screw, 105mm length, 55mm Diameter
E17 Screw , 72mm length, 40mm Diameter

Input Power,
W
Efficacy,
lm/W
Brightness,
lm
DimmingSocket
(Base)
Lifespan,
hours
Color Temperature
LDA4L-A1465260-E2640,000Warm White
LDA4D-A1485340-E2640,000Daylight
LDA7L-A16.965450-E2640,000Warm White
LDA7D-A16.982.6570-E2640,000Daylight
LDA8L-A1/D7.65642510-100%E2640,000Warm White
LDA8D-A1/D7.67053010-100%E2640,000Daylight
LDA6L-E17-A15.54223010-100%E1720,000Warm White
LDA6D-E17-A15.55128010-100%E1720,000Daylight

http://panasonic.jp/everleds/


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Guest, 06.26.2010 06:30:41
Design by Panasonic takatstuki factory japan, maintenance and production in indonetia Panasonic Lighting Indonesia. hm... i always measuring the characteristic of LED.. hmmm... this is the best Quality and best performance of LED lamp.. rated lumen(flux), rated life and color is precision... smile;)
Ray, 09.17.2009 21:55:16
Quote
Howard Wolfman wrote:
What is the mains voltage of these lamps?


Howard,

These lamps are designed for 100V. The voltage in Japan is 100 Volt. The frequency of electric current is 50 Hertz in Eastern Japan (including Tokyo, Yokohama, Tohoku, Hokkaido) and 60 Hertz in Western Japan (including Nagoya, Osaka, Kyoto, Hiroshima, Shikoku, Kyushu).
Jay, 09.17.2009 21:48:44
100V
Howard Wolfman, 09.16.2009 09:12:44
What is the mains voltage of these lamps?
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