The product can turn the light on or off automatically depending on the ambient light. Ambient temperature and humidity cannot affect it. It is not only convenient, but also practical; can control the pregnancy by working only at night. It is used for road lighting, garden lighting, etc. INSTALLATION: Turn off the power. The product must be installed in a gutter. Pull the plastic button on the back of the product, then place the product in the chute. After that, press the plastic button to lock the product in the chute. Connect the wire with the product according to the Connection-Cable diagram SPECIFICATION: Power frequency: 50/60Hz Ambient light: <2-100LUX (adjustable) Working humidity: <93%RH Power source: 220-240V/AC Nominal current: 16A, 20A, 25A Working temperature: -20-+40'C