This is a power light, tells you the camera is working.
If it is too bright, try coloring over it with a black permanent marker. This will dim the light, but won't eliminate it.
You can also put a small piece of black electric tape over it & block it out completely.
if you have windows 10 you can go to Start /settings/apps and features/camera Click on cmera, advanced option will appear click on advance options go to camera in app permissions and turn off. Camera will not longer work (no longer has permission to connect To turn back on follow the same steps and click the slider in camera to on. I would bet you could do similar on a MAC