To match the F-117 Nighthawk, the 6441 achieves a stealthy look through a combination of the signature CARBONOX™ + material and the angled bi-directional turning bezel. In addition, the 6441 model combines Super-LumiNova with the Luminox Light Technology (LLT), which guarantees ultimate night vision for up to 25 years through its use of tritium tubes.