Motion detection function: The stair light has a motion detection angle of 90 degrees and a detection distance of 6 to 8 meters, turning on automatically when motion is detected. The light turns off automatically within 45 seconds after motion is no longer detected. Triple protective shell: Modern stair light constructed from die-cast aluminum with IP65 rating, providing dustproof, rustproof, and waterproof protection. Installation: Recessed installation; housing size: 5.16 x 2.48 x 2.4 inches (131 x 63 x 61 mm), with a minimum required depth of 71 mm. Versatile application: IP65 rated outdoor stair light suitable for various locations including indoor and outdoor staircases, hallways, gardens, balconies, corners, corridors, aisles, villas, and patios. Features: Operates on 220-240V main power supply, no battery required, designed for long life. Dimensions: 140 mm (width) x 70 mm (height) x 71 mm (depth). Wall-mounted light with built-in stair sensor.