Philips Lighting is a leading provider of lighting solutions for professional applications.Philips Lighting is a leading provider of lighting solutions for professional applications. Effective life is 8000-10000 hours, with the wavelength 350-400nm.Philips uses Fluorinated Polymer (FEP) shatterproof coating allows 97% of effective UV light to pass through the coating. Sleeving integrity is maintained for the full 12 months life of the tube.