• Product specifications: thickness: 10mm, (excluding 4 angle iron) outer diameter: 40.8mm (without black silicone ring)
• Line position function:
• Red line (Button +12V power supply line)
• Black line (button LED light negative control)
• Yellow line (key switch positive power trigger output control)
• 3-line function description:
• +  Positive trigger output control, after pressing the start button, the  yellow line outputs +12V; the black line connects the button light to  control the negative output line, and the button light illuminates.

• 1 x Auto Car Engine Start Stop Push Button