Intelligent design, when people come, say goodbye to cumbersome button switches installation, see the light but not the light, easy to clean, and make the space more stylish Adjustable mode/brightness/delay time/speed Automatic control, saving energy High sensitivity and strong practicability Product Name: Dynamic Stair Controller Type: Controller Connection : DC power cord Model: RL-STEP-09 Voltage: DC12V-24V Input current: 10A Power: DC12V / 120W DC24V / 240W Material: ABS colour: white Package Contents: 1 x Controller 1 x Remote Control(2 x AAA Battery Not Included) 1 x Main Cable 1 x Extension Cable 1 x Light Sensing Cable 2 x Sensor Cable 1 Cable 1 x Screwdriver 2 pair x Screw Kit 2 pair x Snap Fixing Kit 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.