"The lowest efficiency of lighting in Japan" PHILPS seeks to improve

[BP] the Nikkei news agency reported Holland PHILPS lighting (Philips Lighting) held lighting business related news conference on September 19, 2007, issued a high efficient lighting appliance is beneficial to prevent global warming effect, as well as the company's lighting apparatus. The company's chief executive officer Feng Desheng (Theo van Duersen) at the press conference stressed that Japan can improve the use of lighting appliances, further reducing power consumption". Feng Desheng said, lighting power consumption in the proportion of total power consumption, the global average of 19%. If you look at Europe, because the first use of efficient lighting appliances, the proportion was only 14%. On the other hand, the efficiency of the lighting apparatus used in Japan is poor, the lighting appliance is not closed at any time, and the brightness is too large. Therefore, the consumption of electricity consumption accounts for about 20 to 22% of the whole. From the point of view of lighting, Japan is less efficient than any other country in the world "(Feng Desheng). Feng Desheng said in a harsh tone, in the efficient use of lighting equipment, cut CO2 emissions, to prevent global warming on the one hand, Japan's worst in the world".

Office lighting power consumption can be reduced by about 60%

From the negative side, the power consumption in Japan can be greatly reduced by improving the lighting apparatus and using method. Japan's PHILPS electronics said that about 70% of the street lamps in Japan use mercury lamps. Changing these lights into fluorescent lights can improve efficiency and reduce power consumption by about 60%. Office and a variety of facilities in the use of fluorescent lamps will gradually become the European standard TL5 products instead of the current Japanese standard "T8" products, can reduce the power consumption by about 60%.

TL5 fluorescent lamp luminous efficiency of 100lm/W (with the use of special inverter circuit). Look at the luminous efficiency, T8 fluorescent lamp and TL5 fluorescent lamp. However, the input power of TL5 is small, so it can reduce power consumption. Due to the low input power, TL5 light flux is small, but still can guarantee the brightness required for lighting. TL5 products in 2007 by the Japanese PHILPS electronics market in japan. Its diameter is only 16mm, life of up to 20 thousand hours. In the future, life expectancy will reach 60 thousand hours.

Lighting power consumption can also further reduce the high hopes of LED

Feng Desheng also said that lighting power consumption can be reduced by up to 40%. If you can achieve this goal, the annual savings of 106 billion euros of electricity, reducing emissions of CO2 tons of 5.55 tons. The advantage of lighting is to take into account the CO2 emission reduction and electricity cost reduction. As a way to further reduce the power consumption of lighting, in addition to the use of high efficiency fluorescent lamp instead of inefficient light source, LED has also been high hopes.

At present, the luminous efficiency of some LED has reached 90lm/W. Although slightly lower than TL5, but compared with the full range of fluorescent light emitting, LED only to the front of the light-emitting, the higher the efficiency of the object. Feng Desheng said that if the CO2 emission reduction in the first place, the most appropriate LED. However, compared with TL5 fluorescent lamps, the use of LED lighting costs higher. It will take more than 15 years to reach the same level (Feng Desheng).

In addition to LED, PHILPS lighting on the use of organic EL lighting appliances expressed expectations. The organic EL can be used as a surface light source, and can be used for a wide range of lighting applications. However, the luminous efficiency of organic EL is relatively low, only about 40lm/W, the improvement will take a long time.