12 Volt 4 Pin SPDT Automotive Relay 30A/40A NO 12V (40-AMP) (Pack of 2) 2 x 12V 30/40 Amp Automotive Relay 40-AMP 12 Volt 30A NC / 40A 4 PIN Automotive Relay This is a universal relay used in all types of automotive application such as HID lighting, remote starts, car alarms and more; This relay can be used along side a switch or using any 12V + or (minus -) trigger; A trigger can be an accessory or ignition circuit to a switch which provides positive or negative trigger Uses: Turn on lights, LED lighting, pop trunks on cars and turn on dome lights; Can be used with siren speakers etc Heavy Duty 30Amp-40Amp 12V DC Use SPDT: Single Pole Throw Coil Resistance: 90 Ohms Coil Inductance: .8H Dielectric Strength: 500 Volts RMS Electrical Life: 100,000 Cycles at 40A Temperature Range: 40-125 C Initial Operating: 7 ms Pack of 2