The Grainger 16W169 is a Philips 16-watt T8 fluorescent light bulb that provides 1600 lumens of light output. This 4 foot long bulb has a medium bi-pin base and a color temperature of 4100K. It has an average rated life of 20,000 hours and meets EISA standards for energy efficiency. This bulb can be used to replace F16T8/TL741 bulbs and is suitable for commercial, residential, and industrial applications. The Philips 16W169 provides bright, energy efficient fluorescent illumination for indoor lighting fixtures.