Switchback Solid-State Relay Harness (pair)

Sale price$50.00
  • Description
  • Specs
  • Installation



Like a relay, but better. The Solid-State Relay Harness from Diode Dynamics allows devices to draw power directly from the battery, while still using your factory signals for activation. It works like a traditional relay harness, but better!

No errors. An increasing number of vehicles have computer-controlled factory signals. They flicker or shut off when too much power is used, making it impossible to use factory signals to power aftermarket lighting. You may have wired in traditional relay harnesses in the past to solve this, but those can have trouble if the signal flickers, and have to be custom-wired for each installation.

Designed for function. At Diode Dynamics, we are committed to delivering fully-designed lighting solutions that work correctly on the vehicle, not just on the bench. To accomplish this, we designed the Switchback Solid-State Relay module with three independent low-impedance signal pickups, compatible with factory signals, PWM filtering (50% duty cycle minimum), robust solid-state switches, and a fused battery harness. With its solid-state design, it will be more reliable over time than traditional relays, at a similar cost.

Use it (almost) anywhere. The Switchback Solid-State Relay Harness has been designed for use with switchback and single-color drivers. You can use it to run from your factory signals and deliver up to 8 amps or 96 watts directly from your battery. Unlike a standard relay harness, this module has three independent input signals, to activate power any time either signal is turned on (for example, turn signal, high power, and low power).

Experience. After over a decade in business, Diode Dynamics is the most trusted name in automotive LED lighting. Unlike every other LED distributor, we assemble and engineer products ourselves in the United States, for high quality and fast time-to-market of the newest and brightest LED technologies. We pride ourselves in offering only quality LED products, that will exceed your expectations. Please contact us if you'd like to discuss your lighting project!




Operating Voltage: 5-16V

Polarity: Polarity Specific

Operating Temperature: -40C to 85C (-40F to 185F)

Connector(s): Deutsch DT Input, T-Tap Inputs

Intrusion Ratings: IP68 Waterproof

Shipped Weight (lb): 0.39


What's Included

In the Box:

  • Two (2) Switchback Solid-State Relay modules
  • One (1) Fused battery input wire
  • Installation guide

Quantity: Two (2)

Warranty: 3 year warranty

Return Policy: 30-day Return with no restocking fee

100% Satisfaction Guarantee


Installation Time: 5-10 minutes

Tools Needed: Basic Toolset

Modification: Basic Wiring Only

Installation Guide: Click to download



  • Provides direct battery power for switchback LED products
  • Activate LEDs from three independent factory signals, with no errors
  • Designed to power Diode Dynamics switchback and single-color drivers
  • Up to 8 amp draw at 12 volts, or 96 watts DC
  • Fully waterproof and shockproof, validated for -40 to 185F operation

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