Hello Say I Have Question Regarding t5 ho Lights

I Am On Budget & Trying To Keep Things Simple, I've Posted My Setup Here In Past And Now Have Opportunity To Get It Up running and trying to figure out if T5 Ho (6 Bulb ) Setup Would Be enough For Vegetative Growth & Fruiting & Flowering A Pepper Plant Or Tomato Or Cucumbers Now Only Thing I Do Know is Those Are long day plants and light loving

FYI; I'm Not Trying To Grow More Than 2 Plants @ A Time
Also My Grow Area is 2ft x 4ft = 8sq ft if my math is correct... I Need Help On How Many Id Need & Requirements Far As Lux Goes That's Another Part Im Not Understanding