I have a few grows under my belt now and Im running a 600 Watt HPS in my cab and decieded to add my other 400W HPS. But is this too much light for my cab?

My cab is 42inchs long by 22inchs wide and 70inchs tall. Here is a few pics.
SmokenJoe Reviewed by SmokenJoe on . More Light for Flower power!!! I have a few grows under my belt now and Im running a 600 Watt HPS in my cab and decieded to add my other 400W HPS. But is this too much light for my cab? My cab is 42inchs long by 22inchs wide and 70inchs tall. Here is a few pics. Rating: 5