Led heat question

Hey guys,

what should I do regarding the heat created in the tent from the LED Lights?
I heard some LED lights have a cooling system. Which does? Mine is 600w working temperature is -20c/ -40c. Should i add a cooling system?

LEDs are either passively cooled or actively cooled. It makes no difference to the heat in the tent which they are in.

Your extraction fan will remove the hot air and new air will be pulled in to replace it.