Having a heavier or lighter swingweight can influence your golf ball flight
Longer video with a bit more depth and description on main channel!
Standard swingweights can vary with different golf brands and models of club within each brand – this is to suit the intention of the design with each club
Clubs designed for seniors and ladies for example are slightly lighter than those designed for more powerful players like a set of blades vs super game improvement graphite shafted irons.