This T8 fluorescent light bulb from Philips is perfect for both residential and commercial indoor use. With a 24,000 hour lifespan and 2,800 lumen output, each 32-watt bulb features a medium bi-pin base and T8 shape for optimal brightness. Estimated to only cost $3.86 per year based on 3 hours of daily use, this bulb also uses only 32 watts and has a color temperature of 3500 Kelvins. Please note that color temperature may vary between neutral and bright white packaging, but all bulbs provide the same output.