Plug N Play V2.0 New inbuilt Detecting technology, works with Both Negatively Switched Headlights and Positively Switched. Inbuilt switching relay detects whether your high beam circuit is negatively or positively switched, ensuring your light bar or driving lights only illuminate. Features 2X DT Deutsch waterproof connectors HB3 and H4 high beam adaptors for high beam relay In cab illuminating switch Heavy Duty 12 Gauge wiring Colour coded battery terminal connectors Heat and water resistant insulation across all main wiring Includes everything needs to power your lights: In cabin ON/OFF Switch, 35A Fuse, 60A Relay, Heat resistive insulated wiring, H4 and HB3 headlight adaptors. Wiring harness voltage rating 12V DC Fuse 35A Output Connector Waterproof Deutsch DT Wiring 12 AWG Headlight Connectors HB3+H4 Interior Switch Illuminating Colour RED