The Aurora A21 is the polyamide version of the Aurora A23, it's equipped with a 6500K cool white LED or Nichia 219C 5000K neutral white 90+ CRI LED, the former is for high-performance light demand and the latter is good to see colors of the object more accurately.
It weighs 46g and has a compact palm size (2.99" * 0.85"), the max output is 1000 lumens with the cool white LED and 700 lumens with the Nichia LED. It has a dual-metal-button for one-hand operation, and magnetic the two-way deep carry pocket clip is easy to carry and for hands-free work.