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  • Apr 21, 2014
  • Updated: 8:36am

LIGHT touch

PUBLISHED : Friday, 05 August, 2011, 12:00am
UPDATED : Friday, 05 August, 2011, 12:00am

Next time you need to change a light bulb or a fluorescent tube, think again.

The trend to switch to LED (light-emitting diode) is gaining momentum. LED is environmentally friendly. A semiconductor glows when the electricity flows. This device is known for its low power consumption and long life.

Traditional lighting requires more electricity because about 90 per cent of power is emitted as heat and not visible light. LED has higher efficiency as more electricity is converted to light. LED uses only about 20 per cent of the electricity needed for traditional appliances.

It can also create moods for every taste. Quartz lamps are often used for wall pictures, but LED colour tones are more adjustable.

'LED has an impact not just on the way homes look, but it positively impacts people's sense of well-being in ways they haven't imagined. Light is proven to elevate our moods, helping us to concentrate and even heal,' says Wang Chung-ming, general manager of Philips Electronics Hong Kong.

'It is easier to adjust the level of light because users can simply tune the electric current,' says Jones Cheung, a project engineer at Acusense Devices. He says LED spotlights are ideal for display cabinets.

With adequate heat dissipation, an LED can last up to 100,000 hours, which is much longer than the traditional light bulb's 1,000 hours, though LED lights will be dimmer after about 50,000 hours.

Ireland has banned traditional light bulb sales since 2009 to reduce carbon dioxide emissions.

CLP Power is currently holding an 'Eco Lights for Trendy Homes' exhibition at its Eco home located at Sai Yeung Choi Street South in Mong Kok until September 30.

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