ZioFrancolino
Active Member
How much do I need? Is 220/280m3/h enough? I'll be using led so the light's heat is not a problem.
Exhausting 2x2 tent (led light)?
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ZioFrancolino
Active Member
Yes
coreywebster
Well-Known Member
Depends on your starting temps, as in your ambient air temp before its going in, then the wattage of the light your using.
LEDs create heat the same as any other light. Just less radiant heat.
For this chart to be useful you need to know the power draw off your light and not the claimed title wattage.
LEDs create heat the same as any other light. Just less radiant heat.
For this chart to be useful you need to know the power draw off your light and not the claimed title wattage.
ZioFrancolino
Active Member
Thank you but I don't understand what dT is, is it how many degrees can the temperature rise before it gets too hot? For example if in the growtent there are already 20-25 °C then the temperature can't rise too much.Depends on your starting temps, as in your ambient air temp before its going in, then the wattage of the light your using.
LEDs create heat the same as any other light. Just less radiant heat.
For this chart to be useful you need to know the power draw off your light and not the claimed title wattage.
coreywebster
Well-Known Member
Yes, its the temp rise from ambient to ideal. If the air been brought in (from basement ect) is 20 degrees C and you wanted say 24 degrees C then its that 4 degree difference. So for 650w of power, light and fans ect you would want 485 cubic meters per hour of airflow, although I think it says they don't take into account for filter resistance and flow reduction, so add another 20%.
ZioFrancolino
Active Member
Thank you
