Whats goin wrong here?

Got these two just finishing week 4 of flower and they look like they are getting nute burn but was also thinking my light was too intense causing light stress/heat stress. I gave them just water today aND was going to lower there fert intake and I brought my lights down to 50% hoping it helps. what do you all think? also the yellow turning leafs do not fall off on their own they sray attached until I pluck them.

These things can trigger what appear to be Cal-Mag deficiencies - fix the problem and many deficiencies will go away...
Overwatering & underwatering
High humidity
Uneven moisture levels in the soil or growing medium
Too-high levels of N-P-K nutrients
PH is too high or low

Do you feed synthetic nutes and let the pots sit in the run-off?

avoid plucking use them as control points

imo: no more nutes ever

a good flush will make them to harvest

good luck

Too much nutes as said before me. This problem didn't just show up yesterday either. This is a good lesson. Next time watch your plants and read them. They'll tell you if they need more or less food. I'm not sure if you followed some feeding chart? They usually tell advise over doing it IMO. Or if you noticed the problem and thought more food was the answer? General rule in growing is less is more. To many people think the goal is to see how far they can raise the PPMs. When the goal should be to feed what it needs until the next time it needs watering. As they grow you water more often. So even if you don't raise the PPM they'll be getting more food simply because you're watering/feeding more often. That doesn't mean I'm not advising raising the PPM as the grow goes on. I'm just saying don't follow a label or a blog. No one knows what is better for a plant than the person maintaining it.