What is the difference between dashes and brackets? Why use brackets over dashes?
Brackets are most commonly used to immediately describe a word or thought inside a sentence, while dashes are used to introduce or emphasize a new thought into a sentence to clarify its intent.
This idea can be best explained by example;
"To install the new circuit you will need to cut the positive (red) wire - be careful not to cut any other wires - leading to the power supply."