FeaturesHigh performance, extra low mercuryPhilips advantage t8 lamps are an energy efficient solution and offer high lumen outputReduced impact on the environment without sacrificing performanceBetter for the environment - only 1.7 mg of mercury per lamp with ALTO® II technologyHigh Lumens enable multiple system options to maximum energy savings and reduce lighting costsFully dimmable without burn-in24000 to 30000 hr instant start, 30000 to 36000 hr program start average life