Lighting Controllers

Lighting Controllers: the box that tells your lights what to do

A lighting controller is the switching and signal-management hardware that sits between your power source, your switch, and the light itself. Instead of splicing an auxiliary light straight into a random circuit, a controller gives you clean switched power, dedicated triggers, or programmable behavior. Some are physical switch panels for running extra lights on a truck or SUV. Others are inline modules that reprogram how factory lamps behave - for example, turning a tail light into an added turn signal - or a Bluetooth unit that runs color-changing accent lighting. If you are adding LED light bars or accent strips, the controller is what makes them switchable and controllable rather than always-on.

What ThreePiece stocks

This category is small and specific: 3 lighting controllers in stock right now from 2 brands, Diode Dynamics and Ford Racing. Prices currently run from $99 to $614 - that is the live range on what is in stock, not a standing offer. Two of the three products are Diode Dynamics modules and the third is a Ford Racing switch kit.

The three examples show the spread well. The Diode Dynamics Tail as Turn + Backup Module for the 2015-2021 Subaru WRX / STi sits at the low end near $99. The Diode Dynamics Bluetooth RGBW M8 1ch Controller is a mid-range option for color-changing accent lighting around $119. At the top is the Ford Racing 2021-2026 Bronco Auxiliary Lighting Switch Kit near $614, a full switch panel for running added lights.

How to choose

Start with what you are actually trying to do, because these three do different jobs:

  • Adding auxiliary lights to a truck or SUV? A switch kit like the Ford Racing Bronco panel gives you dedicated, labeled control. It is the most expensive path but the cleanest for running multiple accessory circuits.
  • Changing how factory lamps behave? The Subaru WRX / STi tail-as-turn module is a plug-in that adds turn and backup function - narrow in scope, vehicle-specific, and the cheapest option here.
  • Running color-changing accent lighting? The Bluetooth RGBW controller is the middle ground, built to drive RGBW lighting from your phone rather than a hard switch.

The honest trade-off is fitment versus flexibility. Vehicle-specific modules are close to plug-and-play but only fit their intended car. The Bluetooth controller and switch kit are more open-ended but expect more wiring on your end.

What else you need

Controllers rarely go in alone. Pair them with the lights they run: browse the full Lighting section, or specific fixtures in Headlights, Tail Lights, and Turn Signals. Building out a rig? Check Truck and SUV for related exterior parts. Everything here lives under the broader Exterior section.

Fitment and ordering

Only one of these products carries listed fitment data - the Subaru WRX and STi module, covering roughly 2015-2021. If you are unsure a controller matches your vehicle, get fitment help by phone at 813-535-5801 or reach out through contact us before you order. Every order ships free, and Affirm and Katapult financing is available.

Lighting Controllers: the box that tells your lights what to do

A lighting controller is the switching and signal-management hardware that sits between your power source, your switch, and the light itself. Instead of splicing an auxiliary light straight into a random circuit, a controller gives you clean switched power, dedicated triggers, or programmable behavior. Some are physical switch panels for running extra lights on a truck or SUV. Others are inline modules that reprogram how factory lamps behave - for example, turning a tail light into an added turn signal - or a Bluetooth unit that runs color-changing accent lighting. If you are adding LED light bars or accent strips, the controller is what makes them switchable and controllable rather than always-on.

What ThreePiece stocks

This category is small and specific: 3 lighting controllers in stock right now from 2 brands, Diode Dynamics and Ford Racing. Prices currently run from $99 to $614 - that is the live range on what is in stock, not a standing offer. Two of the three products are Diode Dynamics modules and the third is a Ford Racing switch kit.

The three examples show the spread well. The Diode Dynamics Tail as Turn + Backup Module for the 2015-2021 Subaru WRX / STi sits at the low end near $99. The Diode Dynamics Bluetooth RGBW M8 1ch Controller is a mid-range option for color-changing accent lighting around $119. At the top is the Ford Racing 2021-2026 Bronco Auxiliary Lighting Switch Kit near $614, a full switch panel for running added lights.

How to choose

Start with what you are actually trying to do, because these three do different jobs:

  • Adding auxiliary lights to a truck or SUV? A switch kit like the Ford Racing Bronco panel gives you dedicated, labeled control. It is the most expensive path but the cleanest for running multiple accessory circuits.
  • Changing how factory lamps behave? The Subaru WRX / STi tail-as-turn module is a plug-in that adds turn and backup function - narrow in scope, vehicle-specific, and the cheapest option here.
  • Running color-changing accent lighting? The Bluetooth RGBW controller is the middle ground, built to drive RGBW lighting from your phone rather than a hard switch.

The honest trade-off is fitment versus flexibility. Vehicle-specific modules are close to plug-and-play but only fit their intended car. The Bluetooth controller and switch kit are more open-ended but expect more wiring on your end.

What else you need

Controllers rarely go in alone. Pair them with the lights they run: browse the full Lighting section, or specific fixtures in Headlights, Tail Lights, and Turn Signals. Building out a rig? Check Truck and SUV for related exterior parts. Everything here lives under the broader Exterior section.

Fitment and ordering

Only one of these products carries listed fitment data - the Subaru WRX and STi module, covering roughly 2015-2021. If you are unsure a controller matches your vehicle, get fitment help by phone at 813-535-5801 or reach out through contact us before you order. Every order ships free, and Affirm and Katapult financing is available.