WeiSen 300W Plug & Play LED Light Bar Wiring Harness Kit - Pulse Plug

In this review the WeiSen 300W Plug & Play LED Light Bar Wiring Harness Kit is evaluated for UTV owners who want a fast, factory-friendly way to power an LED light bar. The biggest reason to consider this harness is its true plug and play design with a pulse power bar plug connector that eliminates complicated battery wiring and lets you tap directly into the factory pulse bus bar. Installation speed and keeping the vehicle wiring intact are the standouts for those who value simplicity and a clean install.

Key Features

• Plug & Play Design: Directly plugs into the factory pulse bus bar so no seat disassembly or battery rewiring is needed, saving installation time.
• Pulse Power Connector: Includes a specialized pulse power bar plug connector to match compatible UTV pulse bus bars and simplify the electrical connection.
• Complete Kit: Sold as a whole set with a 5-pin on/off rocker switch, 10 ft wire, inline blade fuse, and automotive relay so no extra parts are required.
• Battery Safety: The relay and inline fuse provide a layer of protection for the light bar circuit and help prevent uncontrolled current draw.
• Switch Behavior: The switch light turns off with the engine so the harness will not continue to deplete the battery when the vehicle is off.

Who It's For

This harness is best for Polaris RZR, General and Ranger owners who have the factory pulse bus bar (Part Number 4016007) and want a quick, reversible way to add a 300W LED light bar without cutting factory wiring. It is also well suited to DIY installers who prefer a tidy, OEM-like connection and come equipped with the relay and fuse needed for safe operation.

It is not ideal for vehicles without the compatible pulse bus bar or for buyers who need longer or custom-length cables; some customers reported mixed feedback on cable length. If you need heavy-duty switch feel or very long wire runs, consider a different harness or a custom wiring solution.

Pros & Cons

Pros

• True plug & play connection reduces install time and avoids seat removal.
• Includes relay, inline fuse and 5-pin rocker switch so no additional purchases are necessary.
• Switch light turns off with the engine to prevent battery drain.
• Works well with the pulse bus bar for a neat, factory-style hookup.

Cons

• Cable length receives mixed feedback and may be too short for some installations.
• One reported concern about switch quality feeling less robust than other components.

Specifications

Product Type	Plug & Play Wiring Harness Kit
Compatible Vehicles	UTV with pulse bus bar (Part Number 4016007)
Wire Length	10 ft
Included Switch	5-pin ON/OFF rocker switch
Protection	Inline blade fuse and automotive relay
Connector	Pulse power bar plug connector
Voltage	12V

Our Verdict

The WeiSen 300W Plug & Play harness is a practical choice for Polaris RZR, General and Ranger owners who have the matching pulse bus bar and want a fast, clean way to add an LED light bar. It offers genuine plug & play convenience, required protection parts, and a switch that prevents battery drain, making it good value for most UTV DIY installs. Buyers who need longer cable runs or a heavier-duty switch should check fitment and cable length before purchase.

Frequently Asked Questions

Will this plug directly into my UTV?
The harness plugs directly into the factory pulse bus bar when the vehicle uses the pulse bus bar Part Number 4016007; verify that part number before purchase.

What is included in the kit?
The kit includes a 5-pin ON/OFF rocker switch, 10 ft wire, an inline blade fuse, and an automotive relay so no extra parts are required.

Will this drain my battery when the vehicle is off?
No, the switch light is designed to turn off with the engine so it should not continue to deplete the battery when the vehicle is off.