High Pressure Sodium Lamps - (HPS) are a superior, economical lighting choice in general enclosed fixture applications. HPS lamps are the most efficient lamps in the HID family of products. HPS lamps also have a shorter warm-up time than other HIDs. They cast a golden white light that is perfect for illuminating streets and parking areas. Super Arc HPS lamps have a 24,000-hour life. This means less lamp replacements are needed, which reduces labor costs. They are more efficient than incandescent, metal halide, and many fluorescent lamps. The long life and high lumen output puts . HPS lamps ahead..