very high temperature, what to do?

Hi to all,
I planted 2 white widow ,popped 3 days ago.theyre staying in a tent whic has 180 cm height,80cm width and 45 cm depth under 250w hps,

I've problems about ventilation and temperature so.

I put a 120mm pc fan to get air inside tent and an axial fan 300 m3/h for exhausting air outside, but temperature does not decrease 30 degrees celcius.

What can i do to solve this problem?

remove the bottom fan add in a larger upper fan and decrease the intake temp

look at a 4 inch booster fan......it is a 100 cfm this is massive overkill for your area but if this does not reduce it to what u can use then u need to change the light out ............for a LED system

You can never have enough airflow, so ideally you could use your axial fan for you intake and get a 4inch extractor with a high and low speed controller, something like this costs bout $50. You could prob run it on low speed but on hot days you have the option to run on full speed.