Gearbest has the IR Sensor and Photosensitive Night Light for only $11.99 Shipped! Just use coupon code XMNLight at checkout. The light has 120-degree sensing angle and sensing distance is up to 5 to 7 meters. Using advanced photosensitive sensor and human infrared sensor technology with anti-infrared interference function, the light can turn on automatically in the dark environment and light for 15 seconds. Very cool.