Easy to install and can be used when attached to the wall<br> Brightness sensor linkage on-off device, switch, light bulb, socket, motor, etc. to achieve smart home<br> USB power supply, don't worry about running out of battery power.<br> WiFi light sensor<br> Power supply: Micro-Usb DC 5V1A<br> Light range: 0-1000LUX<br> Detection level: 1-3<br> Standby power consumption: less than equal 0.5W<br> Detection component: photosensitive diode<br> Wireless type: 2.4GHz<br> Wireless protocol: IEEE802.11b/g/n<br> Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use.<br> Colour:White<br> Material:plastic<br> Package Contents:<br> 1 x Light Sensor<br> Only the above package content, other products are not included.<br> 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.