FUNCTION OF LIGHT SENSOR:Real time monitoring of indoor lighting intensity, automatic adjustment of light brightness, Improving living comfort while saving energyLight sensors can be linked to lighting, curtains, and other products in the scene Working with Tuya Zigbee gateway:It can accurately collect illumination data in the environment and monitor it in real time, generating and exporting illumination curves for the day, month, and year Sensing changes in light at any time:Knowing the brightness changes of the room based on the data curve, The linkage intelligent switch maintains stable room brightness Automatically adjust room lighting:Intelligent linkage, when the ambient light reaches the specified brightness, it automatically wakes up other smart devices and runs automatically Product name:Brightness Sensor Protocol:ZigBee Low voltage reminder:Yes operation temperature:-10-55 power supply:100-250V detection range:0-1000LUX Due to different batches, there may be differences in product appearance, color, and printed text, which not affect the use. Color: White Material: ABS Package Contents: 1 x Intelligent Ceiling Light 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.