Simple video-call lighting for a small desk
Better video-call lighting usually comes from direction and softness, not raw brightness.
Face a soft light source
Window light from in front or slightly to the side can be excellent when available.
Avoid a bright window behind you
Strong backlight can make the camera expose for the window and leave the face dark.
Keep the key light near camera direction
A lamp far to one side can create dramatic shadows that are unnecessary for normal meetings.
Use the screen carefully
A bright white screen can act as fill light, but it should not replace a comfortable room-lighting setup.
Workroom Standard conclusion
Start with the light you already have before buying anything. Small position changes often improve video more than another accessory.
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