Looks like combination of heat stress and lights too close. Were the leave canoeing or turning up somewhat like a taco shell?
How’s life been treating you? Haven’t heard from you in awhile? Hope all is well!
Are you thinking switch to the LED lights to lower the temps?
Here is the light I just bought @Frescal
https://www.amazon.com/gp/product/B01I4NY8KW/ref=oh_aui_detailpage_o00_s00?tag=greenrel-20
They claim draw wattage of +/- 205 but the actual draw wattage on my unit is like 192 watts. The light does a great job and it will cover a 4x4 area
Here is the grow I am using it on
I even talk about the light in my grow journal.
@Countryboyjvd1971 is who recommended this light to me and we are both happy with out purchases. I don’t have any experience with the visparpectra so I can’t offer any input on that