I have a 4ft 6in x 2ft 6in grow space. I have 6 , 4ft t12 , 6500k / 2180 Lumens bulbs hanging above the area. Is this enough Lumens and light for about 3 to 5 plants in an area of this size? ( Note ) This is just to start the grow. I know for flowering I will need 2700k bulbs, but how many...