●- Shockproof

●- Dustproof

●- Anti-interference

●- Open circuit protection

●- Short circuit protection

●- Plus & minus pole exchange protection

●- Low voltage protection

●- Over voltage protection 

●-Packing Information: 50pcs/Carton

●-Volume: 42.5*31*31/Carton

●-G.W.:0.36kg/pc;18 /Carton