Sunlight management system is mostly used for electric curtains. Electric curtains can be divided into built-in and external types from installation. According to the different operating mechanism and decorative effects are divided into electric opening and closing curtains, electric roller blinds, electric canopy curtains (outdoor electric canopy and indoor electric canopy), electric awnings, etc., specifically such as blinds, roller blinds, roman blinds, soft yarn curtains, opening and closing curtains, honeycomb curtains, roller blinds, awnings, etc.