特征
使用雷达传感器，当人们在附近时打开灯，当人离开时关闭
当有光或高照度时，灯将停止工作
当没有光或低照明时，灯在感测控制模式下工作

Feature
Use radar sensors to let light on when people are near, and off when people are away
When there is light or high illumination, the lamp will cease to work
When there is no light or low illumination the lamp works in sensing controlled mode