Products: Intelligent stair light controller with motion sensor Design: 2 in 1 ( 24V 400W Power Supply + Stair Light Controller integration), installation is more convenient. Input Voltage: 175V-265V AC ( 220V,230V is working, 110V is not working) Output: DC 24V Max Power: 400W Sensor A: Used for Upstairs Sensor B: Used for Downstairs Function: 1. Delay OFF (2s,10s,20s,40s,60s,80s Auto-delay-off adjustable) 2. Brightness & Speed is adjustable 3. Pixel Number is adjustable, Max. up to 1024 Pixels. Strip Length Max. up to 42 Meters. NOTE: for Water Flow Led Strip Colour:As Shown Material:Iron Package Contents: 1x Stair Light Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.