Hi,
No, sorry you can’t turn off the solid green light. That light indicates that your sound bar is on and working properly. If the light bothers you, I suggest you place an object in front of it. I have a small ceramic box in front of mine. I have to maneuver a bit to turn the unit off with the remote but it’s not a big problem. If your sound bar is mounted on the wall, perhaps another customer came up with a creative solution to cover the ever present green light. Hope this helped.