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A photoelectric sensor is a device used to determine the distance, absence, or presence of an object by using a light transmitter, often infrared, and a photoelectric receiver. They are largely used in industrial manufacturing. There are three different useful types: opposed (through-beam), retro-reflective, and proximity-sensing (diffused). The Firefly Photo Sensor Switch with a Photo Cell and Base is a specialized device designed to automatically control lighting based on ambient light levels. Here's a breakdown of its features: Type: Photo Sensor Switch - This device utilizes a photoresistor (or photocell) to detect changes in ambient light levels. It automatically switches lighting fixtures on or off based on the detected light intensity. Capacity: 10A (Amperes), 250V (Volts) - The photo sensor switch is rated to handle a maximum current of 10 amperes and a voltage of up to 250 volts. This capacity allows it to control a variety of lighting loads safely. Voltage: 250V - The device is compatible with standard electrical systems operating at 250 volts, commonly found in many residential, commercial, and industrial settings. Photo Cell with Base: The photo sensor switch comes with a photo cell (photocell) integrated into a base. The photo cell is the component that detects changes in light levels, triggering the switch to turn the connected lighting fixtures on or off accordingly. Model: FEDPS10 - This is the model number of the Firefly Photo Sensor Switch, used for identification and reference purposes. It helps users to identify the specific product among similar offerings. Overall, the Firefly Photo Sensor Switch with its photo cell and base offers a convenient and energy-efficient solution for automatically controlling lighting based on natural light levels. It enhances convenience, saves energy, and improves security by ensuring that lighting is only active when needed.