A photocell is an electronic device used to control street lights. It senses ambient light and turns the street light on and off at the appropriate time. Photocells can monitor prevailing weather conditions, environmental pollution, street lighting, and noise levels. They are available with multiple output communications ports and reference output protocols, and can be integrated with smart LED lamp ballasts.

They are ideal for areas that are not well-lit, and they are also useful in industrial settings. They can control street light brightness as well as the time of day. Photocell street lights also have an automatic on-off function, which turns the street light on when the weather is overcast and off when the sun rises.

Photocells are commonly found in street lighting, as well as in factories, ports, schools, and gardens. When light reaches the photocell, a small amount of current flows from the emitter to the collector. When this current reaches the collector, it energizes a relay electromagnet, which turns the light on or off automatically.

Photocell Street Light can help municipalities cut costs and conserve energy. They are also easy to install, making them a perfect option for urban lighting projects.