High-Intensity Discharge (HID) lamps are powerful lighting solutions commonly used in large areas like streets, warehouses, and stadiums. They require ballasts to regulate the electrical current for proper operation. 

HID - Metal Halide 

Metal halide lamps produce bright, white light with good color rendering, making them suitable for indoor and outdoor applications. They require specific ballasts to ensure optimal performance and longevity. 

High-Pressure Sodium (HPS) 

HPS lamps emit a warm, amber-colored light and are highly efficient, often used in street lighting and industrial settings. They also need compatible ballasts to maintain consistent light output and energy efficiency. 

Low-Pressure Sodium (LPS) 

LPS lamps produce monochromatic yellow light and are extremely energy-efficient, typically used in areas where color rendering is less critical, such as roadway lighting. Appropriate ballasts are essential for their operation.