I was using 4 bulbs in each

I was using 4 bulbs in each softbox. I have a Canon XA-10, not a pro video guy by any means, just want to have a decent video that isn't dark and gloomy looking. I don't know about ND filters, I have a white card to set white balance and I use the P mode as I was instructed by people in another forum. If I used 2 lights in each softbox, I believe it would be super dark. I MUST be doing something wrong.