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This is the unlock key to transform the FREE version of "Lighting Calculations" to the PRO version.
This application does not work on its own. Before you buy this app, you will need to install the main app, "Lighting Calculations".
Instructions:
Step 1: Install the "Lighting Calculations FREE" app.
Step 2: Now, install this Pro Key to enable all the functions. (Kindly do not remove the free version of the app).