Auto Fem Gypsy Widows

Hey there, so me and my boyfriend are growing in a 32x32x63 tent with 2 (600) led grow lights, a 4" inline fan and a 4" exhaust fan with carbon filter. Now we are having problems with spider mites and trying to keep the temp down and the humidity up.. We have a humidifier and 3 fans that we are trying to use to see if we can get the temp and humidity right but with the humidifier going and the 2 LEDs on it gets too hot and the humidity drops down to 30-35%, even with the fan control turned on high. We just bought a new humidifier that we can go to cool mist or warm and set it to a certain % just waiting to get it shipped..

Any other suggestions or experience with the Auto Fem Gypsy Widow?