Ok so the light when in use was disappointing, the bar itself was in my mind too close to the screen, as a result scattered light poorly onto it.
Ordered a Quintis last night from Amazon which arrived pre 9am and have to say I’m very happy. It sits like the BenQ raised from the screen, but with a flexible mount allowing my daft monitor to work.
Webcam sits just above it sturdy enough without the need for an extra bracket.
Just need to decide on rear lighting of any. Toying with this for either behind the monitor, or along the rear edge of the desk facing the wall, but don’t think in that position it will throw much light out to the wall given how close the desk is.
https://amzn.eu/d/elk4rdz