Do these lights come with wiring harnesses or do I need to splice into my factory harness?

Wiring configuration not specified. Your factory cab light harness should connect at the mounting location—verify the connector type before installation to confirm a direct plug-and-play fit or plan for a splice kit.

Will the smoke housing be dark enough that the LEDs don't shine through too brightly at night?

The smoke tint is designed to diffuse the LED output while keeping it functional. If you're concerned about nighttime brightness, test-fit before committing—you can always remove or tape over if needed.

What's your return window if the lights don't match my factory mounting points?

Contact ModSupply's customer service for return eligibility and timeline. Since these mount at factory locations, a quick measurement of your cab light opening before install prevents hassle.