Hi, I’m not sure if you found the solution, but I was trying to find the solution myself through Google and found this post.
Well, I found how to do this, so I’m posting the info here for anyone else who would like to find out.
https://forums.unrealengine.com/core/image/gif;base64
First drag your light component (circled in red on the far left) onto the Construction Script grid, and choose Get Light. Then, drag a pin off of that and search for Intensity to find the Set Intensity node. Right click on the New Intensity input and promote it to a variable. Then, select that variable and toggle the option for “Instance Editable.”
Compile the blueprint once to expose the default value (seen at the bottom right).
Now, when you place this actor within your scene, it should have an intensity value you can edit within the editor, and this can be done for each light.