Powerful: This relay bypass switch controls the pump independently of the "key on/off" system, Simplifying testing With Amplification Loop: The 9038A Relay Bypass Switch can be used with a clip-on amplifier probe/lab oscilloscope to monitor current Plug and Play: Simple installation, can be installed vertically or horizontally, just plug in the pump relay position to directly control the pump circuit. Operating Range: Maximum 20 amps continuous, 30 amps surge (12V), runs all automotive 12V DC motors with the flip of a switch Wide Applications: Relay Bypass Switch Kit fits most pumps, cooling fans, window motors, headlight switches, air conditioning compressors and other devices using automotive relays Color: Black Material: plastic Package Contents: 6x Relay Bypass Switch 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.