Do these bolt directly to the factory mounting points?

These are designed to use existing headlight mounting locations. Before final installation, test-fit the housing and confirm alignment with your vehicle's bracket system — some minor adjustments to brackets may be needed.

Are the bulbs already installed, or do I need to source them separately?

The LED elements are integrated into the housing. Once mounted, the DRL and corner lamps function as a sealed unit — no separate bulb installation required.

Will I need to reprogram anything on my vehicle for these to work?

LED headlights may require a load equalizer or resistor module if your vehicle's wiring detects a burned-out bulb condition. Check your service manual or consult a technician to confirm whether additional hardware is necessary for your specific vehicle.