Philips InstantFit LED T5 lamps are an ideal energy saving choice for existing fluorescent fixtures. Perfect for a wide range of applications Full light output in spaces with temperatures down to -4˚F (-20˚C) Perfect for applications with frequent switching cycles Buildings that desire to be mercury free Compatible with a wide range of ballasts that include instant-start and programmed-start; select models are compatible with dimming ballasts Fits into existing linear fixtures Eliminates the need for rewiring and allows the fixture to maintain original UL and CSA compliance Energy savings No mercury allowing for non-hazardous waste disposal Emits virtually no UV rays or IR NSF Certified for use in food areas and refrigerated food displays 5-year limited warranty