Based on the great original model by @Hom3r at: https://makerworld.com/en/models/164153
I was having some issues with cable clearance on a downward-facing hue play light (the cables would push on the light, eventually breaking the bracket). This model is an extended bracket, roughly 110mm long, that should work for most screens if you'd like to have lights further away from the VESA mounting point itself.
It's a fairly thin part in a rough T shape, but printed horizontally it should be plenty strong.
110mm is roughly the distance for the light to peek under my 27" monitor.
You need the play bar mounting component from the original model, and you can of course combine this with the original bracket (which I did, so the top light uses the original shorter mount).
Fusion360 project file is included, if you'd like to adjust dimensions - it's a bit of a hack job so there's no user parameters, but should be easy to edit dimensions via the sketch and/or timeline.
Follow assembly instructions from the original model page.