Ordered 3 harnesses! Tested each one before install and all 3 get constant power without the toggle switches even connected?? Relay issues??

I really don't think it would be a relay issue. I don't think 3 would be bad but you never know. I've got 2 of the same ones and didn't have any issues. Are you sure you aren't giving constant power to it? Not being sarcastic but check your wiring I don't see how 3 could be bad

Is it possible to buy a replacement switch for this harness?

I am sure you can replace the switch, it a common switch found at most auto parts retailers, average price $5. just a 3blade switch.

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Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light, 2 Years Warranty

Nilight - NI -WA 06 LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light, 2 Years Warranty

Product ID: 240277645

Details

Brand
Nilight
Connector type
rings
Item dimensions L x W x H
17.8 x 2.5 x
Item weight
0.1 Pounds
Material
Aluminium

📏10 feet length for versatile mounting

🔌12V 40A power relay

🛡️Inline blade fuse for safety

Description

⚡ Power your off-road adventures with confidence and style!

EXTENDED REACH - 10-foot wiring length lets you mount lights anywhere on your rig
BUILT IN SAFETY - 40A relay and inline fuse protect your setup from electrical faults
DUAL LIGHT OUTPUTS - Two leads to power multiple LED light bars simultaneously
UNIVERSAL COMPATIBILITY - Fits all 12V vehicles, boats & devices—plug and play convenience
HASSLE FREE INSTALLATION - Includes clear instructions for quick, professional-grade wiring

The Nilight NI-WA 06 Wiring Harness Kit is a robust, universal 12V solution designed to power dual LED light bars with a 40A relay and inline blade fuse for enhanced safety. Its 10-foot length offers flexible mounting options across vehicles and boats, backed by a 2-year warranty for reliable off-road lighting performance.

Specifications

ASIN	B071ZPX32N
Best Sellers Rank	226,859 in Automotive ( See Top 100 in Automotive ) 983 in Car Relays
Brand	Nilight
Cable Type	Proprietary
Connector Type	rings
Customer Reviews	4.6 4.6 out of 5 stars (30,476)
EU Spare Part Availability Duration	2 Years
Global Trade Identification Number	00600537016507
Included Components	1PC Wiring Harness Kit
Item Dimensions	17.8 x 2.5 x 5.1 centimetres
Item Type Name	Nilight LED Light Bar Wiring Harness Kit - 2 Leads 12V On Off Switch Power Relay Blade Fuse for Off Road Lights LED Work Light,2 years Warranty
Item Weight	0.1 Pounds
Manufacturer	Nilight
Manufacturer Part Number	NI -WA 06
Material	Aluminium
Model Number	10008W
UPC	600537016507
Wire Diameter	1.63 Millimetres

Reviews

N**E

Good harness

Great harnes,did the job,just needed to extend part of it as I used it on a long wheel base van and would never reach the rear of van but over all a good harness..

9.11.2021

A**R

Great product and good quality 😊🙌

14.03.2023

K**S

Very good quality product. Totally satisfied with the purchase. The rocker switch provided by the company is suitable for car dashboard, not suitable for bike handlebar mounting. As I'm going to install it on my bike I have to make some minor modifications with the switch. So deducting 1 star.. Otherwise very good product. 100% recommended..

24.09.2020

L**O

Excelente calidad y compatible con cualquier vehículo de 12 voltios.

22.01.2026

C**N

無事接続完了です！

30.04.2025

S**S

V. Good

24.08.2022

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