Hong Kong Chia Tai household goods shop plan to sell online a design of 3W LED bulb, for just 6 dollars or less. This will be the first try to apply LED as economical home light source. LED bulbs with with trademark "CT" have entered the market. Although the unit price is a little higher compared to incandescent led bulbs, but the long lifespan has sent them to the public vision. www.ctledlights.com
In addition to energy saving, LED light bulbs can light up to at least 20 years, and not like many incandescent lamps, they do not contain mercury,. Some LED manufacturers provide recycling services. Also as a cold light source, application of LED in air conditioning systems will reduce the overall load.