By the end of 2007, Chinese highway traffic total mileage reached 3.573 million kilometers, the street lamp number has reached 10000000 cigarettes, and at an annual rate of 20% in the growth. If 400 w sodium lamp to calculate, every year will use at least 20 billion KWH.
If a provincial city by 100000 street lamp calculation, five years may meet month electricity 2.167 billion degrees.
LED street lamp, namely, power saving and save money.
than traditional light source energy saving more than 80%.
one street lamp can save $4022 a year, 5 years can save 20000 yuan.
100000 street lamp can save 5 years spending 2.2 billion yuan.