The Plusrite 150W HPS Lamp is a high-quality, energy-efficient light bulb designed for facility lighting. With a High Pressure Sodium (HPS) technology, this lamp provides bright and long-lasting illumination. The E39 S55 socket size ensures compatibility with a wide range of fixtures, making it a versatile option for various lighting applications. The brand reputation of Plusrite guarantees reliability and performance, making this lamp a suitable choice for facility maintenance and safety lighting needs.