Fangrui Product Details 5-pin Spdt (single Pole Double Throw) Relay 40a/30a High Switching Capability. Pin Specifications: Ground (85), (30), Trigger (86), Output (87a), And Output (87). 10pc Included All Automobiles And Devices Equipped With A 12 Volt Dc Power Source. Product Description Of Ten 5 Pin Spdt 12v, 30/40 Amp Electrical Relay. This Relay Has A Universal Application And Can Be Used In Automotive Setups, Car Sound Systems, Security Systems, And Various Other Applications. Comes With Mounting Tab For Easy Installation. Interchangeable/compatible With: All Automobiles And Devices Equipped With A 12 Volt Dc Power Source. Colour:black Material:abs + Metal Size:28*28*25mm Package Contents: 10 X Relay Only The Above Package Content, Other Products Are Not Included. Note: Light Reflection And Different Displays May Cause The Color Of The Item In The Picture A Little Different From The Real Thing. The Measurement Allowed Error Is +/- 1-3cm.