This Philips C400S51 ALTO High Pressure Sodium Lamp Son ED18 400W E39 ED58 467373 is a top-quality product that is perfect for lighting up any facility or workspace. With its powerful 400W capabilities, it provides bright and long-lasting illumination that will help you get the job done. Whether you are looking to update your facility lighting or simply need a reliable high-pressure sodium lamp, this product is a great choice. It's made from high-quality materials and is built to last, ensuring that you get the most value for your money. So if you're looking for a reliable and efficient lighting solution, look no further than this Philips lamp.