The “power” of a rod refers to how much pressure it takes to flex the rod. Different rod powers are engineered to efficiently handle a certain range of lure weights and line sizes. To select a rod power that will perform best for you, simply narrow your choices to rods designed to cast the weight of lures – and sizes of lines – you’ll fish with most often.
The “action” of a rod is determined by where a rod flexes along the blank. Faster action rods flex mostly near the tip. Moderate action rods flex more near the middle of the blank. Slower action rods flex down into the butt section.