New Grower With Tent Set Up Needs Help

hi everyone, been coming here awhile getting tips and tricks but never posted untill now, i have a grow tent 2"wide, 4" long and 5"high. A 600 watt electronic ballastic kit and 2 metal hilade bulbs (cant spell ) and 2 hps bulbs. it has a knob to control the brightness, 50% 75% and 100% with 100% being the brightest, and the gullwing19 reflector, i had 5 plants and now down to 4, White widow, white skunk, bubblelicious, and wonder woman. i had critical auto, but i over feed and burnt her to a crisp, (yea i know ) but i learned from it and they're doing better, alot better, only had the ballastic kit for a week or so, they were started with 4 cfl bulbs lol. i have a 6inch inline fan blowing on the light and 2 4inch inline fans blowing air in, i have a temp and humidity gauge and 3 6inch clip fans that one blowing on the plant one on the light and i water them every other dayish, or when the soil looks pretty dry, my temps are crazy and i cant seem to control it, on top of that i have a deffeciency i think, had a bug prob, but ladybug killer cleared that right up lol. ill be posting pics, but my temp reaches 116f with a humidty of 26-24% i have a bowl of water in there to add humidity, and truth is they seem to thrive around the 100-110 mark, but anything above that they droop, how can i cool this down better and add more humidity and do i need to, also can you spot what im doing wrong? i got sum yellowing going on, at first it was the nutes, but ive been super careful and barely using it, like a teaspoon every other bottle lol im using iguana grow and iguana bloom, not the bloom yet tho, jus the grow and im using the metal hilade bulb and usually at 100%, i did it at 50% and the temp stayed the same and the light jus dimmed lol any help would be appreciated, also ill be buying bigger pots and more soil soon, any tips on transplanting? or how to do it without destroying my girls?

the temp and humidty gauge reads that at 2am, i think the yellowing might be burning of the leaves from the heat, the very bottom leaves are from the nute attack,the one in the green pot is white widow, the two bigger ones in the tan pots are bubblelicious and white skunk, the smaller one is wonder woman, who lives up to her name after surviving a hardcore nute attack lol

I would turn the light down to 50 percent. it will help keep the temp cool there still small you dont need the full 600watts
600w will cover 4x4 for flower. So 300w for your space is perfect to veg them with then bump up to 75percent for flower

Also get a better quality inline fan those fans are junk a eco plus blower 6inch around 400 cfm

the 6inch fan works well, the 4inchers dont seem to do much at all, the clip on fans seem to being doing their job, so your saying turn it down to 50% then bump it up to 75% during flowering? i got it on 50% right now and the humidty is reading 36% & the temp is 100F lol. but a good 15 degree's cooler than yesterday thankx for all the tips guys, keep them coming, also, should i worry bout a deffeciency? i noticed the yellowing but im thinkin its heat, 116F id image would suck lol

also got carbon filters on the inline fans, im thinking about mid july ima switch to the hps light, or should i switch sooner? theyre about 3 weeks or so into the veg stage