Okay the spectrum is good at 3000k ideal for flowering. The bulbs are 40w's each so you have 80w/5600 lumens.
Really this is not much light to flower, to get decent medicine you ideally need a couple more tubes or toss in some off the shelf led light bulbs, choose the 14w/1500 lumen ones if you go that route they are the most efficient.
In the mean time get your lights as close to the plants as possible like 3-4 inches and try and get a fan blowing gently on them too
You have to grow the plants close to the lights, see pic, you need to create an even canopy that is inches from the lights.
Anything further than 6-8 inches from the lights will grow wispy flowers.
Also use organic dry fertiliser like fish blood and bone instead of the slow release sticks in future. Organic cannabis is the best medicine and the easiest to grow
Bend them at a right angle like this but try not to snap the tops (pinching and twisting the stem helps before bending) and creat a canopy at the same level, then have the lights as close as possible to the canopy 3-4 inches
You want as many nodes as possible to see the light as close as possible
It's much better now and light is a lot closer but you could still get it a couple of inches closer by putting something under the pots.