1. The human body sensor adopts pyroelectric infrared technology, built-in human body infrared sensing module, light effect sensing module and delay switch module. It adopts industrial zone-level chip, which has load capacity and strong anti-interference ability. 2. When the person enters the sensing range, it can be automatically turned on. When the person leaves, the time can be automatically turned off. The conventional lighting is turned off, the unmanned person is wasted, the life of the lamp is extended, and the energy saving, convenience and environmental protection are integrated. 3. It can automatically recognize day and night, and the ambient illumination of the starting work can be freely , so that it can work automatically at night and close during the day. Users can adjust themselves; 4. The detection distance is adjustable and can be adjusted according to the place of use; 5. The light- is adjustable and can be adjusted by the user according to local conditions. Detection range:180 Detection distance:up to 12m (25C) Working voltage:DC12V, DC24V, AC110-250V Operating temperature:-10C - +40C Operating humidity:less than 93% RH Delay time:5 seconds - 6 minutes (adjustable) Ambient illumination:2 - 2000LUX (adjustable) Installation height:1.8m - 2.5m Installation :open type, (opening 16mm) When installing, the knob is facing down. Colour:As Shown Material:plastic Size:60x45x160mm Package Contents: 1 * Motion Sensor(black) 1 * Motion Sensor(white) 1 * Motion Sensor(gray) 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.