Lightroom does not have a built-in way to “fade” and effect so we’ve included multiple strengths for many of our presets (lite, meium and strong.) The Strong version is almost always the full-strength version of the effect, and Medium and Lite correspond to 33% and 66% reductions in the strength of the effect, respectively. If there are only two strengths available for a preset, then the Lite version is half strength.