Abstract: The present invention discloses a light-emitting diode (LED) lamp and an installation method for the LED lamp. The LED lamp includes: a lamp holder and a lampshade installed on the lamp holder. A printed circuit board (PCB) is disposed between the lamp holder and the lampshade. The PCB is provided with a light source component. The lampshade is integrally formed. By means of modular design for each element of the LED lamp, installation of the LED lamp is convenient. After modular design, each module of the LED lamp can be directly used for separate sale, thereby realizing modular after-sales services.

Abstract: An Nd—Fe—B magnet includes a magnet body and a composite coating of metal disposed on the body. The compositing coating has a plurality of plating layers disposed on the magnet body to cover and protect the magnet body and improve corrosion resistance of the magnet body. The plating layers include a first, a second, a third, and a fourth plating layers to cover the magnet body. The first plating layer contains Zn. The second plating layer contains a Zinc-Nickel alloy. The third plating layer contains Copper. The fourth plating layer contains Nickel. A method of depositing on a composite layer on an Nd—Fe—B magnet body.