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OKT mobile phones
official website

Step one: Using a smart phone to install scanning code software, such as "wochacha", "Win on Quick Code” etc.
Step two: Open the scanning code software against the QR code, then you can get an interlinkage.
Step three: open the link, and then enter OKT Mobile Phone Official Website.

Scanning the QR code, you can land the mobile phone website
Home  >  How efficient are led bulbs compared to incandescent bulbs?


How efficient are led bulbs compared to incandescent bulbs?

The efficacy of the newer led light bulbs is more than five times higher than comparable incandescent bulbs. In other words, led light bulbs use only about 20% as much electricity to produce the same amount of light. However, because led bulbs direct a larger percentage of light where it is needed, in many applications they are as much as ten times as effective as incandescent bulbs, reducing energy use by 90%.