Help with two plant problems please

Would anyone be able to help identify the two plant issues I'm having (see pictures)?

Background:

- Fox Farms Soil (with nutrients added with watering
- Just yesterday, switched from a 600w HPS to my 600w led.

The first issue is a whitening on the outside of the leaves of one cola. I'm really hoping it's not mildew and that it's related to the switching of the lights.





The second issue is two spots on one of the leaves which I don't have experience with.



Any help is appreciated.

Thank you.

they're a bit ill right now, but not beyond repair. that looks like mold to me, along with some other issues. like over feeding.
the hid>led change would not show this symptom...but
your hid kept your humidity in check with more heat than your led will and furthermore your hid will provide better par lighting, better penetration, more efficient burn of the nutrients fed. Excess nutrients + cool night temps or high humidity are kind conditions to molds.
I'd check day/night time temps/rh and correct, and cut down the (nitrogen)nutes a little, try just water for a bit, wash off that mold/cut seriously infected leaves away.
I dont know if its mold, but a ten dollar magnifier would tell you .
hope you save it!

Humidity has not gone abovet 30% so I'm hoping it's not mold. Temperatures have been between 80 and 90 degrees.

I will water with distilled water for the next two watering. Thanks chemphlegm.

Here are close-ups of the white edges issue: