Features: The Light Control switching offer automatic light sensing with photoresistor relays module, supporting both DC5V/12V input and handling up to 10A loads for versatile automation. This sensors module features reverse polarity protections, adjustable sensitivity via photoresistor calibration, and LED statuses indicators for simplified troubleshooting and precise environmental adaptation. Designed for electronics hobbyists, intelligent home integrators, and industrial engineers requiring handsfree lighting control in energy efficient automation systems. Optimize street lights, indoor lighting setups, or garden lighting systems by enabling automatic brightness adjustment based on light conditions without manual intervention. Engineered with industrial grade components, this light detection module ensures stable 24/7operation across temperature variations while maintaining responsive light triggered switching accuracy. Specifications: Component: PCB Size: Approx.53x30.3x19mm/2.08x1.2x0.74inch Working voltages: DC5V/12V(Optional) Current: 10A Applicable scenario:Street lighting,Gardening lighting; Package Includes: 1pc Light sensors relays Module note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.