The Philips Surge Protection Device 277V (SPD) is the ideal solution for maximum protection of Outdoor lighting investments. Essential for LED systems installed in high-risk areas, the advantages of using the SPD are not limited only to LED systems. The product can be used in any new or existing lighting solution, regardless of technology. The SPD offers protection without requiring a protective earth connection, making it a unique solution, suitable for Class II systems. It is specifically designed to deliver a long-lasting solution with robust protection against a wide range of temperatures, moisture and vibrations, ensuring peace of mind.