The Duke FL-3 is a high-performance fluorescent light bulb designed for under-shelf mounting. Specifically engineered for 44-3/8" long models, it operates at 120V, 60Hz, and is single-phase. This efficient lighting solution provides bright illumination, enhancing visibility in various settings. Its compact design allows for seamless integration into your existing setup, ensuring optimal lighting without taking up additional space. Ideal for both commercial and residential applications, the Duke FL-3 combines functionality with reliability for all your lighting needs.