1. This product uses low-voltage DC 12V-24V to work, and must be connected to a switching power supply. It is prohibited to directly connect to 220V, otherwise the controller may be damaged. 2. The input port has polarity (positive and negative), and reverse connection is prohibited. The wiring operation should be performed in a power-off state. After the wiring is completed, the installation and lighting connection should be checked for correctness before powering on. If the DC voltage wiring or lighting installation is incorrect, a short circuit may occur, causing the controller to malfunction. 3. This product is only suitable for use in a dry indoor environment. Strong wind, high temperature or severe vibration may cause sensor failure. 4. The sensing angle is 120 degrees, the sensing distance is 1-3 meters, and the sensor is most sensitive when facing people 5. AB sensing heads should be arranged according to the site settings. Additional operating instructions:1. If the AB sensors are triggered simultaneously within 6 seconds, the light strip run inward from both ends. If the AB sensors are triggered continuously for more than 6 seconds, the light strip preferentially run in the direction of the first triggered sensor 2. Set the light time: 3. Single, double, three, four, five 4. If the induction continues during the delay period, the light strip remains on = the total time from A to B + delay time. 5. Short circuit protection device: In the short circuit state, the status indicator light flash. Part name: Staircase LED controller Product model: UL1032 Input voltage: DC12v/24V Sensor head: 2 (A/B) Color: As Shown Material: plastic Package Contents: 1 x LED driver 2 x sensors 2 x output lines 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.