The ZGDD20-320MSD12A LED Power Supply SPD is mainly composed of MOV, GDT and flame-retardant shell. It has protective functions of surge, overflowing, thermal and flame retardant.

The ZGG80-385(2+0)r Modular Power Supply SPD is used for primary and secondary surge protection, and is composed of MOV power module for L-PE,N-PE protection.

The ZGG30-750(3+0) Modular Power Supply SPD is made up of MOV power modules and a base, used for secondary protection of L-PEN respectively.

ZGG40-1000(3+1) modular power supply SPD consists of the MOV power modules and an GDT power module connected together by a 4-position bus bar, used for secondary protection of L-PE.