Dimming is a very important feature for multiple reasons. It can enhance space ambiance and flexibility as well as increase visual task performance with task tuning. Save energy with dimming by not always having to keep lights at their full brightness. It also allows for compatibility with various control systems and sensors. Always meet certain energy codes, like IECC, ASHRAE, and Title 24, with dimming options!
See the links below for wiring diagrams and additional details for each dimming prototypical.