Do these headlights come with LED bulbs installed?

The LED daytime running lights are integrated into the housing. You'll need to source replacement bulbs for low and high beam separately — the DRL function is self-contained in the unit itself.

Will I need a wiring harness or relay module?

These mount at factory connection points. DRL operation depends on your truck's factory electrical setup — some models trigger DRL automatically when the ignition turns on, others require a separate DRL module. Confirm your truck's wiring before purchase.

Can I install these myself with basic tools?

Bolt-on installation at existing mounting points, no drilling. You'll need a socket set and a few hours. Disconnect the battery before starting, and test both low and high beams after install to confirm proper connection.