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It details the components required, including photovoltaic panels, batteries, and a charge controller, as well as the operational principles such as the role of the light-dependent resistor (LDR) and relay. Key This document describes an automatic street light system that uses a light dependent resistor (LDR) and transistor to automatically switch a street light on and off. It includes a block diagram and circuit diagram. Also many street light controllers come with an astronomical clock for a particular location or a Global Positioning System (GPS) connection to give the best ON-OFF time and Automatic Street Light Using Arduino - Free download as Word Doc (. Future advancements could integrate wireless communication for improved The document describes a project report for a solar powered LED street light with automatic intensity control. Smart street light systems use sensors and controls to automatically adjust LED street light brightness based on ambient light levels. 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