LED lighting efficiency to improve the cost of why

Why other industries and overseas enterprises so actively involved in a series of LED lighting market, and why it is so active? This is because has changed past is recognized as the luminous efficiency and price of LED lighting project, all aspects are more than fluorescent lamps LED lighting the impending results.

LED light efficiency to improve the cost down

First, luminous efficiency of LED chips increased year by year. Japan's LED lighting Promotion Association (JLEDS) in 2008 announced the development blueprint is expected, the efficiency of white light-emitting efficiency LED will reach 120lm/W in 2009, to the year 2015 will exceed 150lm/W. But at that time, manufacturers have said "in the next 2~3 years to launch 150lm/W products" (Japan PHILPS electronics company responsible for Japan's vice president Yamada Fanxiu), "has reached 120~130lm/W, but also realize the amount of 150lm/W products (Nichia on behalf of Vice President Director Tian Qideng), the efficiency of nearly two years increased faster than expected. Generally speaking, LED lighting has the effect of power loss and temperature rise, so the luminous efficiency of the entire lighting device (integrated efficiency) mostly lower than the LED chip luminous efficiency of 3~5, only about 50~70lm/W. However, the recent comprehensive efficiency of more than 80lm/W products are not uncommon. Expected before and after the year 2012 will exceed the efficiency of inverter fluorescent lamps (90lm/W~100lm/W head), to meet or exceed the level of fluorescent energy-saving lamps.

Also regarded as LED lighting another issue prices are steadily declining. From the overall cost (lighting prices and electricity bills), sometimes better than fluorescent. In the equivalent of 60W incandescent bulb bulb type LED lighting, for example, in the 40 thousand hour life period, the overall cost of about 10 thousand yen. The life expectancy for 1000 hours after the use of incandescent bulbs for 40 thousand hours, the total cost of more than 50 thousand yen, even if the bulb type fluorescent lamp, but also to reach the head of 16 thousand yen. If the cumulative lighting time is more than about 14 thousand hours, the overall cost of bulb type LED lighting is cheaper than the bulb type fluorescent lamp. Assuming that these 14 thousand hours a day for 10 hours, then in the long run, or LED lighting is more favorable.

JLEDS on LED chip price forecast, is expected to 2012 before and after the unit cost will be lower than the brightness is recognized as the popularity of the critical point of 1 yen /lm. However, this goal is likely to be achieved ahead of schedule. "Falling by more than 20% a year. Estimated to be in a very long time to keep down "(Nichia Tian Qi).

Manufacturing and sales of incandescent stop, LED more than the price of 1 yen, the popularity of the /lm luminous efficiency of a fluorescent lamp. From these 3 points of view, in 2012 before and after the popularity of LED lighting will accelerate. Lighting manufacturers and new vendors to focus on the rapid expansion of demand for 3 years after the start of the LED lighting business.