Features: brand new and high quality Frame structure: wrap-around double-sided distribution frame. Reliable connection: The connection of inner and outer wires adopts multi-contact winding type connection, which has reliable connection and good air tightness. Safe and reliable protection: It has good overvoltage and overcurrent for protection functions. The security unit is composed of semiconductor discharge tubes and polymer PTC or adopts integrated chips. 4 Level alarm: 4 Level sound and light alarm occurs in the security unit, security wiring row, column alarm and general alarm. Reliable grounding: There is a reliable grounding system. Specifications: Product Name: for Lightning for Protection Unit Module Connection: Snap Material: silver-plated copper Size: approx. 12x4x2cm/4.72x1.57x0.79in Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 10PCS x for Lightning for Protection Unit Module