The LLNF-1T06-H is a high-efficiency narrow flood beam lens specifically designed for LedEngin 10-watt single-color emitters, providing uniform illumination with a 23° viewing angle (FWHM). The lens features optical-grade PMMA material construction with 90% optical efficiency, delivering smooth light gradients that eliminate hot spots and rings for superior beam uniformity. Mechanically, it measures 38.9 mm maximum width and 18.2 mm height from the seating plane, with an operating temperature range of -40°C to +110°C, and is compatible with standard MCPCB assemblies using epoxy or polyurethane-based adhesives. This lens is ideal for illumination applications requiring high luminous output and excellent beam quality with minimal optical aberrations.