Diode Dynamics C-Light Switchback LED Boards - 2015-2021 WRX / 2015-2017 STI

Upgrade the factory C-Light illumination on compatible Subaru WRX and STI headlights with Diode Dynamics C-Light Switchback LED Boards. These custom-shaped LED modules fit behind the original headlight diffuser to provide bright, uniform 6000K white running lights and amber turn-signal illumination.

Features

• Vehicle-specific left and right C-Light LED boards with 524 LEDs total (262 per side)
• White 6000K running light switches to bright amber when signalling
• Waterproof constant-current drivers with reverse-polarity, transient, overvoltage and thermal protection
• Uniform illuminated appearance using high-density LED technology and diffusing gel
• Optional Diode Dynamics DD4055 DRL harness can disable the factory high-beam DRL and run the C-Lights as DRLs

Vehicle Fitment

• 2015–2017 Subaru WRX — all factory headlight trims
• 2015–2017 Subaru STI — all factory headlight trims
• 2018–2021 Subaru WRX — Base and Premium trims with factory halogen-projector headlights only

Not compatible: 2018–2021 WRX Limited or any 2018–2021 STI with factory LED-projector headlights. Designed for the specified OEM headlight assemblies; aftermarket headlight housings are not confirmed compatible.

Specifications

• Manufacturer part number: DD2016
• Colour: 6000K white running light / amber turn signal (switchback)
• LED count: 524 total
• Measured output: 610 lumens DRL; 500 lumens amber turn signal; 330 lumens parking light
• Power consumption: 7.0 W DRL; 7.2 W amber turn signal; 4.0 W parking light
• Operating voltage: 5–16 V
• Operating temperature: -40°C to 85°C
• LED board material: FR4 PCB
• Manufacturer-listed shipping weight: 1.92 lb

What's Included

• Two custom-shaped LED boards (left and right)
• Two waterproof drivers
• Two input-wire pigtails
• Eight T-tap connectors
• Installation guide

Installation & DRL Wiring

Professional installation is recommended. Installation requires opening and resealing both factory headlight assemblies and connecting the supplied wiring to the vehicle's parking lights, turn signals and ground. Manufacturer estimates 1–2 hours.

DRL harness sold separately: The optional Diode Dynamics DD4055 harness redirects the factory high-beam daytime running light to the C-Light LEDs while retaining normal high-beam operation. The LED boards can also be wired to operate alongside the factory DRL. The optional harness does not eliminate the other required T-tap connections.

Warranty: Diode Dynamics three-year limited replacement warranty.