Why do we always say that ordinary street lights are no longer suitable for the use of today's times, not to mention that ordinary street lights consume conventional energy and pollute the environment? It is said that the engineering and cost required for installation are not suitable. It takes hundreds of millions to dig the ground and wire up to install ordinary street lights at a time, and some roads need to be closed for construction, which brings inconvenience to people's travel. Therefore, ordinary street lights are not suitable for reuse. On the contrary, solar street lights are now suitable for today's use. And why is solar street light suitable? In terms of installation, it has more advantages than ordinary street lights, and the project does not cost so much. Solar street lights do not need electricity, no overhead lines are needed, and a lot of ground digging is not required. Just dig a pit to bury the foundation, install the solar street lights, and then tighten them with a few screws. This can be done by a few people, and there is no need to close the road. It is easy to install a street light in ten minutes, which saves manpower and material resources and does not affect people's normal travel. Solar energy is used to convert electrical energy, so the solar street lamp installation location can satisfy the sun. But from this point, solar street lights are more suitable for use in the current era than ordinary street lights.