Solar street lamps light source advantage compared with the traditional street lamp light source

High power LED solar street light with conventional high-pressure sodium lamp lights, high-power LED street lamps light source adopts low voltage dc power supply, by GaN power type blue LED with a yellow phosphor synthesis efficiency white light diode, light emitting diode ( LightEmittingDio

high power LED solar street light with conventional high-pressure sodium lamp lights, high-power LED street lamps light source adopts low voltage dc power supply, by GaN power type blue LED with a yellow phosphor synthesis efficiency white light diode, light emitting diode ( LightEmittingDiode, abbreviated as LED) Is based on the semiconductor PN junction formation with a weak power can light efficient solid-state light source, in certain positive bias voltage and the electrical flow injection, injection of holes and injection P N the electronic after spread to have source area by the radiative recombination and emit photons, convert electrical energy directly into light energy. The LED as light source, solar street lamps compared to traditional street lamps light source, it has many advantages. 1, LED street lamp light failure is small, light failure is less than 3% a year, using the 10 years still for road use illumination requirements, therefore, the LED street light on the design of the use of power can be lower than the high-pressure sodium lamp; 2, LED lights, can automatically adjusting can meet the requirements of divergence time lighting at the moment, the biggest possible to reduce the power, save power; 3, LED solar street light light color is higher than high pressure sodium lamp, high-pressure sodium lamp only 23 at the mercy of color rendering index, color rendering index and LED street lamp can reach more than 75, from the psychological point of view, vision can achieve uniform brightness, LED street lamp light average more than 20% lower than the high-pressure sodium lamp ( With reference to the British road lighting scale) ； And, in the middle level of visual, in high temperature environment to the human eye know things more easily than low temperature environment, avoid the happening of a certain risk; 4, LED street lamp itself has the directivity of light, no light diffusing, ensure smooth effect; 5, thermal control: the wicked will LED junction temperature has dropped below 70 ° C, along with the technology, the growth of a further decline in node temperature, nodes and the lower the temperature, the longer the life of the LED chip is theoretically; 6, LED to frequent switch without having to concern about the damage; LED 7, is the low voltage dc components, LED street light, drive voltage for the safety of the single star LED, so it's a Billy with high-pressure power supply more secure power supply, out of line or used in public places. The characteristics of the dc LED out of line for connecting with solar energy, wind power; 8, quality reliable, power supply circuit are all made of high quality components, each LED has clear click-sould over current protecting and series-parallel caress, even if a damaged, will not lead to other LED chip failure; 9, ED light source does not contain harmful metallic mercury, unlike high pressure sodium lamp or metal halide lamp when discarded pose risks to the environment. 10, refining installation: install the LED street lamp holder directly on the light pole to replace the original sodium lamp holder; 11, long service life: theoretical life can use more than 50000 hours; 12, LED lights have a weird secondary optical design, LED street lamp light to the lighting area, namely the pavement, to further improve the light efficiency, to achieve energy saving purpose; 13, each unit LED grain only a small volume, so the device can be prepared into various shapes, and is suitable for variable, Yi Zhen environment; 14, LED light source efficiency today has reached 100 lm/W, and there are a lot of into space, the theoretical value can reach 250 lm/W. And high pressure sodium lamp luminous efficiency was increased with the increase of power, as a result, the overall LED street lamp lighting is better than high pressure sodium lamp. Landscape lights solar street lamps garden lights