hey whats up man, you need to get your temps down, but im surprised noones told you this piece of advice already... you need to scrap that tin foil..one, it creates hot spots which can burn your babies in the future, 2. tin foil, even tho it looks shiny to us, is actually less reflective than flat white paint, or any flat white surface, you'd be better off going and buying thick poster board at walmart or an arts and crafts store and lining the box with that instead.
or if u have money order 2mm mylar film its about 96% reflective i believe
also let you soil dry out a bit, don't mist them when they are under the lights, the droplets act as a magnifying glass and intensify the light on those spots of the leaves, just causes stress. Now some people do foliar feed their plants when theres lights on them, but to help avoid the droplets they add an bit of regular soap to the water before they spray