Unique Patina: Made of copper, which will naturally oxidize and forms a layer of patina when exposed to air, causing its appearance to evolve over time; The patina layer will take on various colors base on different environmental factors Ultra bright: New reflector with 7000K LED, compared to A9, the finger size L*2.26" Dia*0.61" of A9 Pro can max output 650 lumens, easily to light up an entire room or reach nearly 110m, suitable for various daily use