My original intention of this plug-in arrangement is to optimize the multi-line operation and is suitable for the daily use of two employees at face-to-face desks in the office. Home use can also match some products that need to be used at a non-lying angle, such as electric mosquito coils, etc. The independent space given is relatively sufficient to prevent multiple plugs from interfering with the operation. The design of LED model increases the use experience at night and is realized by capacitive switch or