The FL-11's rotating barrel design enables beam angle adjustment from spot (10°) to flood (45°) with an intuitive twisting motion. When set to a 10° spot the FL-11 can increase light output of the Forza 60B II to a staggering 34700 Lux (3223.7 fc) 5600K at 1 meter. The included metal barndoors enables further adjustment of the light output and control of spill. With a push of a button and a quarter-turn you can swap out the FL-11 for any of the specifically designed Nanlite FM-Mount modifiers.