The feasibility analysis for the retrofitting of solar street light

The feasibility analysis for the retrofitting of solar street light. 1, the efficiency of the LED light source has now 100 lm/W, also has the very big development space, and the theoretical value of 250 lm/W. And high pressure sodium lamp luminous efficiency was increased with the increase of power, as a result, the overall solar road lighting



the solar street lamps Solar street light is a crystalline silicon solar battery power supply, valve control type sealed and maintenance-free battery ( Gel battery) Store electricity, super bright LED as light source, lamps and lanterns and controlled by the intelligent charging and discharging controller, is used to instead of the traditional public power lighting lamps. 】 The feasibility analysis for the transformation.

1, the efficiency of the LED light source has now 100 lm/W, also has the very big development space, and the theoretical value of 250 lm/W. And high pressure sodium lamp luminous efficiency was increased with the increase of power, as a result, the overall smooth effect better than high pressure sodium lamp, solar street lamps

2, has a unique secondary optical design solar street lamps, solar street light to the lighting area, further improve the efficiency of the light, in order to achieve energy-saving purpose;

3 -, solar street light itself characteristics - The unidirectional light, no light diffusing, guarantee the light efficiency;

4, solar street light light color than high pressure sodium lamp high many, high pressure sodium lamp color rendering index [ Light source for color is called color rendering of the object, is by reference or reference light source with same color temperature ( Incandescent lamp or light) The comparison of the object color appearance. 】 Only 23 or so, and the color rendering index above 75 solar street lamps, think in terms of visual psychology, to achieve the same brightness, solar street light can, on average, more than 20% lower than the high-pressure sodium lamp, ( With reference to the British' Britain, the full name of United Kingdom of Great Britain and Northern Ireland ( 大不列颠及北爱尔兰联合王国) The British Isles, native is located in the northwest of continental Europe, by the north sea, UK - yingguo】 Reasonable lighting standards) ；

5, solar street lamp light failure is small, light failure is less than 3% a year, still meet the requirements of road use illuminance to 10 years, and high pressure sodium light failure is big, has fallen by more than 30% a year or so, as a result, solar street light on the design of the use of power can be lower than the high-pressure sodium lamp;

6, solar street light automatic control and energy saving device, can realize under the condition of meet the requirements of different times lighting the biggest possible to reduce the power, saves the electricity.