Feature Highlights: 1. Smart Day/Night Sensing – Automatically activates only at night when human motion is detected; stays off during the day to save energy. 2. Auto Shut-Off – Turns off the light when no movement is detected within the set time, making it efficient and hassle-free. 3. Wide Voltage Compatibility – Works with DC 5‑24V power supplies, suitable for various low-voltage lighting and control projects. 4. Durable Construction – Made of high‑quality PCB material, ensuring reliable performance and long‑term use. 5. Easy to Install – Compact module design with clear wiring terminals, ready for quick integration into your system. Product Details: This PIR motion sensor switch module detects human movement and controls connected lights or devices automatically. It operates only in dark conditions (night mode) and ignores motion during daylight. When movement stops, the module turns off the load after the adjustable delay period. Built with a sturdy PCB and consistent components, it offers stable performance for security lighting, cabinet lights, DIY automation, and other low‑voltage applications. The module is designed for easy wiring and requires no complicated setup. Specifications: - Material: PCB - Operating Voltage: DC 5‑24V - Sensing Mode: Passive Infrared (PIR) - Day/Night Control: Auto activation in dark only - Delay Time: Adjustable (auto‑off after no motion) - Color: Random (specific color requests cannot be accommodated) - Note: Minor appearance variations may occur between batches, which do not affect functionality. Package Includes: 4 × PIR Motion Sensor Switch Module (Only the items listed above are included; other products are not part of this package.) Friendly Reminder: Slight color differences may appear due to lighting and screen settings. Product dimensions allow a tolerance of +/- 1‑3 cm.