LumaWerx H4/9003 Switching Ground Polarity Module

LumaWerx H4/9003 Switching Ground Polarity Module

$ 24.95

Score By Feature

Based on 9 ratings

Sturdiness

9.80

Durability

9.72

Giftable

9.71

Value for money

8.88

Softness

5.96

OveReview Final Score

How Our Score Is Calculated

Questions & Answers

Is this method suitable for the 2005 Chevrolet Astro van, whose polarity shifts when the high beam is turned on? Also, do resistors need to be added or are they already included. ?

This product is designed to fix cars and trucks that switch the ground from high to low instead of switching the power.

When it comes to converting to a two bulb system, will this fit my 2014 FJ Cruiser?

You can switch the ground if your 2014 FJ cruiser is a switching ground.

Do you know if it will work with the LED Would you please tell me what I need to do for my Hummer H3?

In cases where the series LED headlight functions high beam and low beam are controlled by "Minus" in your vehicle, the Lumawerx module will work if you install a retrofit LED headlight which needs to be controlled by

Does this look like a pair or one on its own?

Separately, they are available for purchase.

Selected User Reviews For LumaWerx H4/9003 Switching Ground Polarity Module

We do not recommend this product

3/5

This did not work as advertised, intact after installing it as directed the headlights did not work. They were returned to me.

Nicholas Ellison

| Aug 13, 2020

I love it

5/5

The wiring in my own home saved my life. It works great as soon as you plug it in.

Nina McMillan

| Nov 06, 2020

Fantastic fix, thanks a lot! I was able to use them on my 1986 Suzuki Carry with no problem

5/5

If I didn't have them, my LED lights would only work on high beams. I really appreciate how well this is built, and it was easy to install and hide behind a light fixture.

Kelvin Salazar

| Nov 20, 2020

The whole thing didn't work

3/5

It didn't work, and the reverse polarity module didn't work either. There are no outputs at either end of a connection even when power is applied at one I have a feeling both were not working, but both were identical.