Which is better, solar street lamp or ordinary street lamp? Which is more economical, solar street lamp or ordinary 220V AC street lamp? Based on this problem, many buyers are puzzled and do not know how to choose. Now, zzwbhk, a solar street lamp manufacturer in Zhengzhou, Henan Province, will carefully analyze the advantages and disadvantages between the two to see which lamp is more suitable for our needs.
1、 Working principle: ① the working principle of the solar street lamp is that the solar panel collects the sunlight, and the effective lighting time is from 10 a.m. to 4 p.m. (taking the northern summer as an example). The light energy is converted into electric energy, and the electric energy is stored in the prefabricated colloidal battery through the controller. When the sun goes down and the light is insufficient, resulting in the lighting voltage of the solar panel being less than 5 V, the controller will automatically activate the street lamp, Start lighting. ② The working principle of the 220V street lamp is that the main line of the street lamp is connected in series from the ground or underground in advance, and then connected with the street lamp line, and then the lighting time of the street lamp is set through the time controller, which turns on and off at a few times.
2、 Scope of application: solar streetlights are suitable for areas where power resources are scarce. As some areas are affected by factors such as environment and construction difficulties, solar streetlights are a more appropriate choice. There are also some rural and highway central isolation areas. In this case, if the main line is overhead, it is easy to cause damage to the lamps or excessive aging of the wires, resulting in open circuit. If you go underground, you still need high pipe jacking costs. At this time, solar street lamps become the best choice. Similarly, in areas with sufficient power resources and convenient line connections, 220V street lamps are a good choice.
3、 Service life: in terms of service life, if LED street lamps are used with the same brand and quality, I personally think that 220V street lamps have a slight advantage because the LED street lamps themselves are very energy-saving. At this time, when calculating the electricity charge, although the solar energy does not use 220V voltage, that is to say, there is no electricity charge, However, the cost of battery replacement every 5 years or so is much higher than that of 220V AC street lamps (only for LED lamps, except high-pressure sodium lamps).
4、 Configuration of lamps: whether AC 220V street lamps or solar street lamps, the mainstream LED light source now has the advantages of energy conservation, environmental protection and long service life. The lamp poles in rural streets can be configured with 20w-40w LED light sources (equivalent to 60w-120w energy-saving lamp brightness) at a height of 6-8m.

5、 Disadvantages: disadvantages of solar street lamps ① the battery must be replaced every 5 years or so. ② Under the influence of overcast and rainy days, after three consecutive days of overcast and rainy days, the battery power will be exhausted, and it will no longer be able to provide night lighting. ③ The lighting time at night cannot be adjusted on-line in a unified way (the lighting time in winter and summer is quite different, and it should be adjusted one by one when the time needs to be changed). Disadvantages of 220V AC street lamp: ① the current of LED light source cannot be adjusted, resulting in full power in the whole lighting period, and full power in the later midnight when there is no need for too much lighting brightness, which wastes energy. ② As long as there is a problem with the main cable of the lamp, it is difficult to deal with it (underground and overhead are troublesome). In case of a short circuit, it must be checked one by one. The light ones can be connected and repaired, and the heavy ones need to replace the whole cable. ③ As the lamp poles are made of steel, they have very strong conductivity. If power is connected in rainy days, 220V voltage will endanger life safety.