From a subsidy policy perspective, many countries and regions have provided various forms of subsidies to encourage the promotion and application of solar streetlights. Taking China as an example, the government has vigorously promoted the application of solar streetlights in rural lighting projects and urban infrastructure construction through fiscal subsidies and tax incentives. In rural areas, the government's "Rural Revitalization" strategy regards the installation of solar streetlights as an important measure to improve the rural living environment, providing substantial financial subsidies. For example, in some provinces, provincial government subsidies for rural solar streetlight projects can reach 30%-50% of the total project investment, with municipal governments also providing matching subsidies. This policy has greatly stimulated the demand for solar streetlights in rural areas, promoted the rapid expansion of the solar streetlight market in rural areas, driven the upgrading of rural lighting facilities, and improved nighttime travel conditions for rural residents.

Regarding environmental standards, with the increasing global emphasis on environmental protection, the solar street light industry faces stricter environmental requirements. Internationally, the European Union has established stringent carbon emission and energy efficiency standards, requiring solar street light products to minimize their environmental impact during production, use, and disposal. For example, in the production process, environmentally friendly materials are required to be used, reducing the use of harmful substances; during use, energy conversion efficiency must be improved to reduce energy consumption; and in the disposal process, a comprehensive recycling system must be established to ensure the effective recycling and reuse of solar street light components. The implementation of these environmental standards has prompted solar street light companies to increase investment in technological research and development, improve production processes, and enhance the environmental performance of their products, thus driving the entire industry towards a green and sustainable development direction.

Furthermore, some countries have introduced policies related to smart streetlights to promote the integration of solar streetlights with smart technologies. The US government encourages cities to adopt smart solar streetlights in their streetlight renovation projects, supporting the integration of streetlights with technologies such as the Internet of Things and big data to achieve intelligent management and efficient energy utilization. Driven by this policy, some US cities, such as New York and Los Angeles, have launched pilot projects for smart solar streetlights. By installing sensors and communication modules on streetlights, they have achieved functions such as remote monitoring, intelligent dimming, and fault warning, improving the efficiency and intelligence level of urban lighting management. This has also opened up new development directions and expanded market space for the solar streetlight industry.