Easy to install and can be used when attached to the wall Brightness sensor linkage on-off device, switch, light bulb, socket, motor, etc. to achieve smart home USB power supply, don't worry about running out of battery power. Zigbee3.0 light sensor Communication method: Zigbee 3.0 Power supply: Micro-Usb DC 5V1A Light range: 0-1000LUX Detection level: 1-3 Standby power consumption: less than equal 0.5W Detection component: photodiode Need to be used with Tuya Zigbee gateway (not included) Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Colour:White Material:plastic Package Contents: 2 x Light Sensor 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.