T8 SIZE – 1 INCH DIAMETER (NOT T12): These are T8 fluorescent tubes (1" diameter). Not compatible with T12 fixtures (1.5"). Please measure your fixture before purchase. NATURAL WHITE: Produces 2800 lumens of 3500K natural white light, ideal for offices, schools, retail, and commercial spaces. ENERGY EFFICIENT – 32 WATT: High lumen output with reduced energy use compared to older lamps. LONG LIFE – UP TO 13,000 HOURS: Built for durability and reduced maintenance costs in high-usage environments. STANDARD G13 BI-PIN BASE: Designed for T8 fixtures with a medium bi-pin socket. Easy, direct replacement. Brighten your space with the LUXRITE F32T8/835 Fluorescent Tube Bulbs — built for reliability, clarity, and energy efficiency. True T8 Size (1-Inch Diameter): These are T8 fluorescent tubes with a 1-inch diameter, designed for standard T8 fixtures only. Not compatible with T12 (1.5-inch) fixtures. Please measure your fixture before purchase to avoid mismatches. Standard G13 Bi-Pin Base: Each bulb features a medium bi-pin (G13) base for a simple, plug-in installation into compatible T8 sockets — no rewiring or adapters needed. Bright Natural White Light (3500K): Produces 2800 lumens of balanced, neutral light for offices, schools, retail spaces, and commercial areas where comfortable visibility matters. Energy Efficient – 32 Watt: Provides strong illumination while reducing energy use compared to older lighting technologies. Long-Lasting Performance: Rated up to 13,000 hours, reducing maintenance and replacement costs in high-use environments. Luxrite T8 Fluorescent Bulb Uses 75% less energy then equivalent incandescent lamps. It has a long life of 13,000 Hours and it works with all G13 medium bi-pin sockets. Similar replacement to Philips 281618 F32T8/TL735/ALTO, Westinghouse 37322 F32T8/735/ECOMAX, Philips 272492 F32T8/TL735/ALTO, Bulbrite 528132 F32T8/735/EW, Sylvania 21998 FO32/735/ECO, Philips 162396 F32T8/TL735 PLUS/ALTO, Philips 281832 F32T8/TL735/PLUS/ALTO.