Solar street light introduction and price analysis

The city of Dingxi in Gansu is located at the mid-latitude east-east edge of Eurasia, belonging to the warm temperate continental monsoon climate. The seasonal changes in solar radiation are significant. The ground's high and low pressure activities are frequent. Four seasons are distinct, and there is a great disparity between the winter and the summer. Rainfall is concentrated in summer and autumn. The total number of hours of sunshine in the year is 1916.4-2571.2 hours. The sunshine hours are sufficient. There is enough sunshine during the year, and there are few days of continuous rainy days. Therefore, Dingxi, Gansu is best equipped with solar street lights.

Dingxi western Gansu Province and the original Eastern solar street lights suitable, solar street lights can be used for new rural construction, school lighting, factory road lighting, hospital lighting, residential lighting, mining lighting. Solar street lights do not need to be laid cables, no manual control, light control + time control control procedures.

The configuration of solar street lights used in the construction of a new rural village in Dingxi, Gansu Province: 30W LED light source, LED chip is U.S. Puri chip. The lamp is 5 meters high. The light pole is made of high-quality Q235 steel sheet with silicon content less than 0.04%, galvanized sneezing, 8 years of anti-corrosion, 5 years do not fade, flange 24*24cm, diameter is 60-133cm. For polysilicon panels, the conversion rate is 17.8%. The battery is a colloidal battery that is resistant to cold and low temperature and free of maintenance. The controller is light control plus time control, waterproof power supply. It is lighted for 6 hours at night, and it can illuminate a range of 20 meters and a width of 8 meters to meet the needs of rural lighting. For the new rural construction is very practical, with the street light villagers to travel a lot easier, the villagers can come out at night activities.

Solar street light introduction:

1, the characteristics of solar street lamps - one-way light, no light diffusion, ensuring light power.

2. The solar street lights have a common secondary optical plan, illuminating the solar street light to the desired lighting area, and further increasing the illumination power to reach the energy-saving intention.

3, LED light source power has reached 110-130lm/W, and there is still a lot of room for development, the theoretical value of 250lm/W. The high-pressure sodium lamp light power is added with the power to add, so the overall efficiency of solar street lighting is stronger than that of high-pressure sodium lamps; (This overall light efficiency is theoretical, high-power solar street lights are actually 250W above the pressure of high-pressure sodium lamp light Efficient than LED).

4, solar street light color rendering is much higher than the high pressure sodium lamp, high pressure sodium lamp color rendering index as long as 23 around, and solar street lighting color rendering index of 75 or more, from the perspective of visual considerations, to reach equal brightness, solar street light can evenly More than 20% lower than high-pressure sodium lamp, 5, solar street light decline is small, light decline of less than 3% a year, use 10 years still use the illuminance requirements of the road, and high pressure sodium light decay, a year has declined by 30% Above, as a result, solar street lamps can be used with lower power planning than high-pressure sodium lamps.

6, solar street lights have active control of energy-saving equipment, can now be satisfied with the same time not the same time the maximum possible drop in power requirements, save energy. Spark smart solar street light can realize computer dimming, time control, light control, temperature control, long-distance operation, active inspection and other humanized functions.

7, LED is a low-voltage device, driving a single LED voltage is a safe voltage, the single product LED power of the series is 1 watt, so it is a more secure than the use of high-voltage power supply, especially for public places (such as: street lamp Lighting, factory lighting, car lighting, civil lighting, etc.).

8, as long as the small size of each unit LED chip, so it can be prepared into a variety of shapes of the device, but also suitable for the volatile environment.

9, long life: can use more than 50,000 hours, to ensure the quality of three years. The downside is that the life of the power supply is not guaranteed.

10, high luminous efficiency: use ≥ 100LM chip, compared to traditional high-pressure sodium lamp can save more than 75%.

11, the device is simple: no need to bury the cable without a rectifier, etc., directly to the street lamp lamp device is connected to the lamp pole or the light source is nested in the original lamp shell.

12, excellent cooling control: summer temperature control below 45 degrees, and use passive cooling methods, summer heat to ensure inadequate.

13, reliable quality: circuit power supply full selection of high-quality components, each LED has its own over-current protection, no need to worry about damage.

14, uniform light color: without the lens, not to increase the brightness and consecrate uniform light color, and then ensure that the aperture color is uniform.

15. LEDs do not contain harmful metals, unlike high-pressure sodium lamps or metal halide lamps that cause damage to the environment when they are scrapped.

Summarizing the above principles, the energy-saving effect of high-power solar street lamps is significant, and replacing high-pressure sodium lamps can save more than 60% of electricity consumption. (waiting for research) Low protection cost: As compared with traditional street lamps, the cost of solar street lighting protection is extremely low. By comparison, it can be fully invested in less than 6 years.