What are the differences between utility streetlights and solar streetlights?
With the improvement of environmental conservation awareness, the application of solar energy is becoming more and more widespread, solar street lights is a new type of solar energy applications, some people will ask which is better solar street lights and utility street lights? The differences between solar street lights and ordinary utility street lights are mainly
1, installation difficulty
Solar street light installation without laying complex lines, only need to do a cement base and within 1m to do a battery pit, with galvanized bolts can be fixed.
The construction of utility street lights usually requires a lot of complex operating procedures, including laying cables, digging trenches and laying pipes, threading pipes, backfilling and a lot of civil construction, consuming a lot of human and material resources.
2、Using cost
Solar street light line is simple, basically does not produce maintenance costs, and the use of solar power to provide energy for street lights, does not produce expensive electricity, can reduce street light management costs and use costs, but also to save energy.
Utility street light lines are complex and require regular maintenance, as the use of often high-pressure sodium lamps, in the case of unstable voltage is very easy to damage, and with the growth of the use of years, the maintenance of aging lines is a headache. And the overall cost of electricity for utility street lights is very high, and also bear the risk of cable theft.
3, safety performance
Solar street light is an ideal public lighting product for ecological communities and highway departments because it uses 12-24V low voltage, stable voltage, reliable operation and no safety risks.
Utility street lights have certain security risks, especially in construction situations, such as cross-construction of water and gas pipelines, road reconstruction, landscape construction, etc., which may affect the power supply of utility street lights.
4、Life comparison
The service life of solar panels, the main component of solar street lights, is 25 years, the average life of the LED light source used is about 50,000 hours, and the life of the solar battery is 5-12 years.
The average service life of utility street lights is about 10,000 hours, plus the longer the use, the greater the degree of aging of the pipeline, the shorter the service life.
5, the system difference
Solar street light is an independent system, each solar street light is a self-contained system; while the utility street light is a system for the whole road.
What kinds of light sources are there in solar street lights?
Solar street lights use solar power, according to the light source is divided into different types, solar street lights are mainly the following types of light sources.
1, low-pressure sodium lamp
Low-pressure sodium lamp luminous tube sealed in a high vacuum and coated with infrared reflective film in the glass shell, its luminous efficiency is basically not controlled by the Department of ambient temperature, its radiation spectrum is pure, stable, no stray light, the wavelength of light through the fog, coupled with high-quality electronic ballast, making low-pressure sodium lamp easier to use in a variety of power conditions, especially suitable for solar street lights in tunnel lighting and plateau alpine and other special It is especially suitable for solar street lights in tunnel lighting and special environment areas such as plateau and alpine. Compared with some common light sources, low-pressure sodium lamps can save more than 50% of electricity at the same luminous flux and illuminance.
2、High-pressure sodium lamp
High-pressure sodium lamp is DC 24V (12V) input to electronic ballast, output low frequency (or high frequency) supply lamp, high pressure pulse start lamp. Due to the electronic ballast lamp, the life of the lamp is greatly beneficial, can improve the lamp life of more than thirty percent.
3、Metal halide lamp
Metal halide lamp luminous efficiency is particularly high, its luminous efficiency up to 80 ~ 90Lm / W. Because the spectrum of metal halide lamp is in the continuous spectrum based on the addition of dense line spectrum, so the color rendering index is particularly high, that is, color reproduction effect is excellent. In addition, the halogen lamp color temperature is high, up to 5000 ~ 6000 K. The disadvantage of metal halide lamps is the relatively short life, in the case of low power start difficulty.
4, induction lamp
Induction lamp is a new light source specially developed for solar energy system, because there is no filament inside the bulb, so the service life is very long. In addition, due to the light bulb light-emitting coating for the three-color powder, soft luminescence, glare is greatly reduced, high-frequency induction discharge lamps do not require or less maintenance, but also can directly save electricity costs.
5, energy-saving lamps
Energy-saving lamps are characterized by small current, can greatly extend the battery discharge time, its luminous efficacy of 40LM / W, color temperature of 2700K, 4000K, 6400K and other kinds.
6、LED lights
LED as the fourth generation lighting source, green light source, with energy saving, environmental protection, long life, small size, etc., using electric field luminescence.
