It'll be enough but the trade off would be picture quality. You see, the image sensor chip of any camera is prone to dark current shot noise which is not negligible when lighting is dim. Simply put, in dark conditions (for example: putting the lid on your lens) your raw video should show a perfectly black frame, but if you zoom in to the darkness, they are some pixels that are not showing a totally dark color. This is caused by dark current flow in that pixel site of your image sensor. It's presence is seen as random spots in dark regions of your videos. To avoid this light up the scene properly.