Trying to reduce grow light electric bill
My electric bills keep going up and the electric company said it is going up about 42% over the next 4 years. This is my first season growing under lights. I am running 16 - 4 foot 40W florescent tubes in my setup. I am growing lettuce, arugula, beet greens, red Russian kale, mesclun, and scallions for use in salads this winter.
What do you think the minimum amount of light hours these veggies will tolerate? Can they get by on 6 or 7 hours or light?