Time for an upgrade! From the factory, the Sierra comes with a white C-shaped DRL that from certain angles can look segmented and distorted. Diode Dynamics is excited to release our HD LED Halos for the 2016-2018 GMC Sierra that provides a much brighter, more uniform appearance compared to the factory optics. These computer-designed LED Halos are circuit boards that align perfectly behind the factory diffusing reflector. Available in switchback and amber-only, both versions also function as an additional front turn signal for a custom, yet functional look!

High output, clean appearance. The custom-designed LED modules replace the factory bulb or single LED, illuminating with a much higher intensity. With our proprietary high-density HDLED technology, these modules are populated with over 500 LED chips, which are then coated by a diffusing gel, resulting in a perfectly uniform light when turned on. When it's off, the diffusing gel hides the chips, resulting in a clean, OEM appearance.

Pure white color. Assembled in USA, the modules light in a pure 6000K white color, not a cool blue like cheaper products on the market. And because they use modern high-power amber chips, rather than traditional LEDs, the amber is even brighter than the white!
Constant-current power.

To power the modules efficiently, your order includes two custom-designed drivers, which feature transient voltage suppression, reverse protection, and a switching driver for extremely high reliability over time. And here's what really makes this product shine over the competition: with an embedded microcontroller, the drivers utilize multi-stage PWM dimming, to allow for a half-brightness white, for use at night (parking lights), as well as a full-power white, for use as DRL during the day. Finally, the amber is run at even higher power, making the turn signal easily visible in broad daylight!

Professional installation is strongly recommended, as the factory headlights must be opened for installation. The halos must be custom-mounted in position using adhesive or beading wire.

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.

• 22016-2018 GMC Sierra LED Halos
• Computer-designed LED Halos for the 2016-2018 Sierra 1500
• Huge increase in brightness, with pure white and brilliant amber output
• More uniform output, upgrade from segmented factory optics
• Made in the USA

What's Included In the Box:

• Two (2) application specific LED Halos
• Two (2) waterproof drivers
• Two (2) input wire pigtails with T-taps
• Installation Guide
• Warranty: 3 year warranty
• 100 percent Satisfaction Guarantee

Fitment
Note: Not compatible with 2016-2018 GMC Sierra 2500 or 3500. Application: DRL Make: GMC Model: Sierra 1500 Years: 2016, 2017, 2018 Electrical Compatibility: No electrical issues (tested and confirmed)
Specifications

• Measured Lumens: 670 (Switchback Halo - Amber Turn Signal)
• Color Temp (CCT): 2000K, 6000K Power (watts): 11.65 (Switchback Halo - Amber Turn Signal)
• Operating Voltage: 9-16V Current (amps at 13.2V): .910 (Switchback Halo - Amber Turn Signal)
• Operating Temperature: -40C to 85C (-40F to 185F)
• LED Emitter: Custom-Manufactured Connector(s): JST Inline
• Connectors, T-Tap Inputs
• Driver Features: External, Waterproof, Constant Current
• Materials: FR4 PCB
• Cooling: Passive, no heatsink Product Dimensions (in): 14.25x8.75x2.25