Replacement Fluorescent Lamp, 21W, T5, G5, 2PK

This replacement fluorescent lamp delivers reliable, energy-efficient lighting for commercial and industrial applications. The F21T5/841/ALTO is a 21-watt T5 linear fluorescent bulb engineered to provide consistent cool white illumination at 4100 Kelvin, making it ideal for task-oriented environments requiring accurate color rendering and bright, neutral light output. Featuring a bipin (G5) base configuration, this lamp produces 2100 lumens of light output and measures 34 inches in length with a diameter of 0.625 inches. The 4100K color temperature with 85 color rendering index ensures excellent color accuracy, making this lamp suitable for office spaces, retail environments, healthcare facilities, educational institutions, and industrial workspaces where visual clarity is essential. Built with Philips' proven fluorescent technology, this lamp is designed for programmed start ballast systems, ensuring smooth, flicker-free operation and extended lamp life. With a rated service life of 25,000 to 35,000 hours, this bulb minimizes replacement frequency and reduces maintenance costs over time. The ALTO designation indicates optimized performance characteristics for reliable operation in various fixture configurations. This lamp is an excellent choice for upgrading existing T5 lighting systems or as replacement stock for facilities maintaining standardized lighting solutions. Its energy-efficient design helps reduce operational costs while maintaining superior light quality and performance consistency. Compatible with standard T5 fluorescent fixtures equipped with appropriate ballasts, this replacement lamp meets industrial standards for safety and performance. Whether stocking for facility maintenance, electrical supply operations, or facility management applications, the F21T5/841/ALTO provides dependable performance and quality illumination for demanding commercial and industrial environments.