To add lighting to your pergola, there are various options available. String lights can be hung across the rafters or edges for a warm ambiance, while pendants or chandeliers offer an elegant touch. Spotlights or uplights can be strategically placed for highlighting features, and lanterns or candle holders provide a charming and intimate atmosphere. Consider solar-powered options for energy efficiency. Ensure electrical installations are done by professionals and plan lighting placement to achieve the desired effect.