Here is an illustration of rod Action so you can think about what kind of bend you want for your rod under a given pressure. - Ryoshi Pro Outfitters

Here is an illustration of rod Action so you can think about what kind of bend you want for your rod under a given pressure. It is different from rod weight which you can interpret as power, while action is about sensitivity.

Rod action (Rod Taper) :
Fast action: Bends primarily in the tip section, providing high sensitivity for detecting light bites.
Moderate action: Bends more evenly throughout the rod, good for a balance of sensitivity and power.
Slow action: Bends significantly further down the rod, ideal for casting lighter lures with a softer presentation.

Rod weight (power) :
Light power: Suitable for smaller fish and lighter lures.
Medium power: Good for a variety of fish species and lure weights.
Heavy power: Designed for large fish and heavier lures