A significant market challenge is upgrading historically significant or architecturally cherished buildings with modern lighting. Simply replacing ornate chandeliers or vintage sconces with standard LEDs is often unacceptable. The retrofit market has responded with ingenious solutions. These include custom-designed LED “lamps” that mimic the exact shape and filament appearance of antique incandescents, low-profile driver modules that fit into existing enclosures, and precision-engineered downlight retrofit kits. The goal is to achieve the energy savings, longevity, and controllability of LED technology while preserving the aesthetic integrity and character of the original space. This niche requires deep collaboration between lighting engineers, preservation specialists, and custom fabricators, blending cutting-edge technology with respect for historical design.