t5 high output full spectrum fl ?'s

Can i grow 5 plants in a closet with 4 t5 high output full spectrum 6500k fl's. that would be 20,000 lumens. they say they are for overall plant growth. for vegging and flowering.
 
i kno you can grow with just about any growing light. but will it be worthless with these lights (small yields)? anybody? do i have enough light?
 
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