Understand the Specs.F Fluorescent 32 rated wattage T8 Tubular shape measuring 1" (8/8") SPX65: Bright Daylight White Color 6500K Kelvin Temperature - the color of the light Base G13 Medium Bipin 2700 Lumens brightness of the light 32 rated wattage. Tip: The numbers after F32T8 describes the color or whiteness of the light. For a replacement make sure the size/shape, voltage and wattage match. You can choose a warmer or cooler color as your preference. More details: Case pack of 25. Average Rated Life per bulb 20,000. Overall length: 48" - 4ft. 120-volt fixtures. Replacements for: Philips 453795 F32T8/HL765/ALTO, Goodlite G-20227 F32T8/765/ECO, Sylvania 22175 FO32/765/ECO, Philips 423061 F32T8/TL765/PLUS/ALTO. Where is this tubular bulb usually found? Large overhead area - open office areas, basements and garages. Kitchen ceilings - for a bright inviting light. In a doctor's office, clinic, studio, and shop. Also used to start vegetable plants indoors and for growing houseplants.