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Author Topic: Out With Watts, In With Lumens (standrat baru bola lampu di luar negri)  (Read 2599 times)

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Offline kullatiro

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Out With Watts, In With Lumens
Wattage used to be the simplest standard for judging a light bulb’s brightness, but no more.  Alternative lighting sources like LEDs and fluorescent bulbs produce light while using far less power, and even incandescent bulbs have improved in their efficiency.  So it’s time to stop comparing apples and oranges, and instead focus on a consistent measure of how much light is being produced:  lumens.

Lumens offer a standardized measure of light output, and as manufacturers begin to list lumens instead of wattages on bulb packaging, consumers will be able to more accurately compare the performance of different products regardless of their energy usage.



New Federal Trade Commission guidelines for light bulb packaging will further assist buyers:  by mid-2011 other information in addition to lumen output will also be clearly labeled, including annual energy costs and a bulb’s typical lifespan.

http://www.metaefficient.com/leds/light-bulb-efficiency-guidelines.html

tambah tambah pengetahuan keluar standart baru di luar negri tentang lampu
« Last Edit: 02 May 2011, 10:03:20 PM by daimond »

Offline Sunkmanitu Tanka Ob'waci

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Lumens, udah lama kali jadi standar
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