1. LED solar street lights use solar photovoltaic cells to provide electricity, and solar energy, as a green and environmentally friendly new energy source, is "inexhaustible and inexhaustible". Fully utilizing solar energy resources has positive significance in alleviating the shortage of conventional energy.

2. The installation of LED solar street lights is simple and convenient, without the need for a large amount of basic engineering such as laying cables like ordinary street lights. It only requires a base to be fixed, and all wiring and control parts are placed in the lamp frame to form a whole.

3. The operation and maintenance cost of LED solar street lights is low. The entire system operates automatically without human intervention and incurs almost no maintenance costs.

shortcoming

(1) Dispersion: Although the total amount of solar radiation reaching the Earth's surface is large, the energy flow density is very low. On average, near the Tropic of Cancer, in clear summer weather, the irradiance of solar radiation is highest at noon, with an average solar energy of about 1000W received on an area of 1 square meter perpendicular to the direction of sunlight; If the annual daily and night average is used, it will only be around 200W. In winter, the energy flow density is generally only about half, and on cloudy days, it is usually only about 1/5, which is very low. Therefore, in order to obtain a certain amount of conversion power when utilizing solar energy, a set of collection and conversion equipment with a considerable area is often required, and the cost is relatively high.

(2) Instability: Due to natural conditions such as day and night, season, geographic latitude, and altitude, as well as random factors such as sunshine, shade, clouds, and rain, the solar irradiance reaching a certain ground is both intermittent and extremely unstable, which increases the difficulty of large-scale application of solar energy. In order to make solar energy a continuous and stable energy source, ultimately becoming an alternative energy source that can compete with conventional energy, it is necessary to effectively solve the energy storage problem, which is to store the solar radiation energy during sunny days as much as possible for use at night or on rainy days. However, energy storage is also one of the weaker links in the utilization of solar energy.

(3) Low efficiency and high cost: The development level of solar energy utilization is theoretically feasible and technically mature in some aspects. However, some solar energy utilization devices, due to their low efficiency and high cost, generally speaking, cannot compete with conventional energy in terms of economy. For a considerable period in the future, the further development of solar energy utilization will be mainly constrained by economic factors.