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Will led save money or not ? First part: Led life span.

Before we explore will led save money or not, we need to know three methods of saving money. First, average life span; Second, luminous efficiency; Third, average power use. Today, we start with Life span. Let’s try to make it short and easy for understand. Normally incandescent lamp which we use is invented at 1878 … Continue reading

Hello World!

It is excited that we can launch ecoelc.com on Thanksgiving day 2011. No gifts, no turkey. But some useful tips for led home lighting. The first topic I will share will you later will be: Will led save money or not ? If you have time, please back to here soon. Best regards Yours Keith … Continue reading