Install this EncapSulite coated Sylvania T5 tube to ensure superior protection in food processing plants, laboratories, or anywhere a sterile environment is essential. Don't be fooled by imitations, UltraGuard is the only coating that can resist yellowing and breaking apart. These UltraGuard shatter resistant lamps contain glass shards in case of breakage and are suitable for incidental food contact in federally inspected food, meat and poultry plants.