13w energy saving daylight PL tube. The unique Daylight(TM) lighting technology not only reduces eye-strain but also helps reduce greenhouse gases by consuming 75% less energy. Simply put, Daylight(TM) is better for the environment and for your eyes! Technical Information: Watts: 13W. Tungsten equiv: 75W. Kelvin: 6500K Lumens: 825. CRI: 85.