Winter growing under lights

My guess would be too much of the wrong sort of light, some plants turn bluish/green, some curl leaves, others go blotchy, it's trial & error for me as it's difficult to find much/anything online about growing fruit, veg & flowers under lights, only illegal stuff. Chillies/Peppers, Cannas, Basil & Oregano can't seem to get too much of artificial light, tomatoes can be fussy and different varieties react in different ways.