Open or create a new project in After Effects. Add a new Adjustment Layer (Layer > New > Adjustment Layer). In the timeline, position it above your video clip.
With the adjustment layer selected, add a Lumetri Color effect (Effect > Color Correction > Lumetri Color).
Expand the Creative section. Click on the Look dropdown menu then choose Browse…. Navigate to the product folder. Load a LUT from the LUTs\3DL folder.
Note: The LUTs from this product should be imported from the Creative section – not Basic Correction.
To change the opacity, adjust the “Intensity” setting.