Does this connect to the factory wiring harness or do I need a custom harness?

This light integrates with your existing brake circuit wiring. Confirm the connector type matches your truck's tailgate harness before ordering—if there's any mismatch, you may need a simple adapter or custom pigtail.

Will the LED brightness work with my truck's factory computer, or will I get error codes?

LED lights draw less current than OEM incandescent bulbs. Some trucks respond by throwing a "bulb out" warning. If you get a code, a load resistor installed inline with the circuit typically resolves it.

Is the chrome finish sealed against moisture, or will it need protection?

The chrome is factory-applied, but tailgate lights are exposed to road spray and weather. A clear UV protective coat applied after install extends the finish life—standard automotive clear works fine.