bump map strength control

hay everyone
so i have made a bump map but i want to make it stronger…
so how to do so? xD
like i want the holes i make in the bump map lil more deeper
PS: i am using cycles

Add a Mix-Multiply node between your bump map texture and the Displacement input. Lower the factor in Multiply to increase the strength.

what about the math node?

A number of people including myself just use the math node with it set to multiply, in which unlike the color mix node, there’s no clipping of values so you can make it as strong as you want (or you can make it weaker by using a value between 0 and 1).

In addition, setting the math node to multiply the data with a negative number can even work to reverse the bump.