We are a family company from Liushi, Wenzhou, China. Since 2010 we focus our efforts specializing in the development and production of AC & DC surge protective devices (SPDs).


Neutral box 4pole, special fold structure to protect plug in module

AC surge protective device SPD T2 1+0, optional change over contact, replaceable plug in module

LSP AC&DC SPDs manufacturer tour

Automatic welding AC & DC surge protective device SPD

Serigraphy AC & DC surge protective device SPD

PV DC surge protective device SPD SLP40 PV1500 3S

AC & DC Surge protective device SPD outer carton & inner individual box

AC surge protective device SPD T1+T2 Iimp 7kA 3+1 for TT system

LSP T2 Class C AC SPD surge protective device assembling and testing

Laser Printing – Surge Protective Device SPD

What is Power over Ethernet PoE

Surge Protection – Frequently Asked Questions