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Form Lighting FL0012 is a direct-fit headlight upgrade for 2014-2018 GMC Sierra 1500, 2015-2019 GMC Sierra 2500 HD, 2015-2019 GMC Sierra 3500 HD. It uses an application-matched housing and connector for a clean replacement installation. Confirm the complete year, make, model, trim, and factory lighting configuration before ordering.
Key Features
- Form Lighting headlights allow you to add full LED functionality to your truck along with a number of modern features including a startup sequence and sequential turn signal.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2014-2018 | GMC | Sierra 1500 | Headlamp | These lamps are not compatible with models equipped with LED turn signals from the factory. |
| 2015-2019 | GMC | Sierra 2500 HD | Headlamp | These lamps are not compatible with models equipped with LED turn signals from the factory. | Official application group: Sierra 2500/3500 |
| 2015-2019 | GMC | Sierra 3500 HD | Headlamp | These lamps are not compatible with models equipped with LED turn signals from the factory. | Official application group: Sierra 2500/3500 |
Fitment tags are limited to year, make, and model. Trim, chassis, engine, and factory-lighting requirements remain application notes.
Specifications
| Brand | Form Lighting |
|---|---|
| Manufacturer Part Number | FL0012 |
| Product Type | Headlight |
| Placement | Front |
| Finish | As shown |
| Condition | New |
| Operating Temperature | -40C to 85C (-40F to 185F) |
| Connector(s) | OEM-Size Plug and Play |
| Intrusion Ratings | IP67 Weatherproof |
| Unit Weight (lb) | 9.35 |
| Product Weight (lb) | 18.7 |
| Shipped Weight (lb) | 23.05 |
| In the Box | One (1) Left Headlamp One (1) Right Headlamp One (1) DRL Harness Two (2) Halogen Headlamp Adapters |
What's Included
Pair (Left and Right Side). Wiring adapters, harnesses, and hardware are included only when supplied by Form Lighting for MPN FL0012.
About Form Lighting
Form Lighting develops vehicle-specific LED replacement lamps with modern optics, OEM-grade materials, plug-and-play connectors, and US-based product support.
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Frequently Asked Questions
Will Form Lighting FL0012 fit my vehicle?
It fits the applications in the Fitment table. Confirm the trim, body style, factory lamp type, and connector because those details can change within the same model year.
Is Form Lighting FL0012 plug-and-play?
It uses OEM-size connectors for the supported applications. Some headlight kits also use supplied adapters or a daytime-running-light harness, so review every included component before installation.
What should I test after installing Form Lighting FL0012?
Test every applicable running-light, brake, reverse, turn-signal, high-beam, low-beam, and startup function before final assembly. Replacement headlights must also be aimed correctly.
Installation Instructions
Estimated time: 1-2 hours. Tools: Basic Toolset. Modification: None. Disconnect power as appropriate, protect painted surfaces, transfer any specified factory components, connect all supplied adapters, test every function, then secure the assemblies. Aim headlights after installation.
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