I ordered this relay (100 A. 4 pins). They sent 80A, 5 pin relay. I sent it back and immediately ordered a new one. ONCE AGAIN. You sent me the wrong relays. Will have to send these back. The relay seems to be of normal quality, but. The seller must have some kind of inventory confusion. E Support™ DC 12V 100A 100 AMP Automotive Boat Truck 4 Pin SPST Alarm Relay Pack of 5