The screen also now has LED side lights, to make up for the lack of back lighting. (manga.jadedragononline.com)
Another option is to replace the door and put in a single door with side lights on each side. (biggerpockets.com)
The number of fixtures to use depends on the size of the growing area, and they can also be placed vertically in corners for side lighting. (fieryfoodscentral.com)