Hi, new to hydroponics and a few lighting questions..

Room size is 6'x4' with a 8 foot ceiling. My husband built me a vertical garden tower which I'm going to grow lettuce and herbs it stands
Approx. 7' tall. I also would love to experiment with tomatoes and peppers kratky and NFT method.

Now I know that peppers and tomatoes need stronger light but will lettuce/herbs substand the more powerful lighting & since my tower is vertical how to I light the plants at the bottom is there a way to vertically hang the lights somehow on the wall?
If someone could guide me on the proper lighting or suggest what they think would work this would be really appreciated