Light Bulbs 101: What You Should Know Before You Shop

CFLs or LEDs? Watts or lumens? Today, there are so many options for light bulbs. Watch this video before you shop to learn the essentials.

ที่มา : https://www.youtube.com/watch?v=R6zQtKb9y2M

NationalGridUS

National Grid’s job is to connect people to the energy they use, safely. We are at the heart of one of the greatest challenges facing our society – delivering clean energy to support our world long into the future.

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