400W in a growbox s. Does that works?

[SmokeyMcPot]

I have a growbox s (80x80x160), a Lti 100A fan (175m3/h) and a cooltube reflector.

can I put a 400W HPS lamp in it with this setup?

or do I need a stronger fan? so that the glas of the cooltube doesn´t get too hot and the roomtemp is ok.

for example: now with 250W and 22-24C roomtemp outside the tend I have 25-27C in my growroom.

I think 400W would only work between Okt. and Mar. when it´s cold outside.

in summer i have up to 30C in my rooms. damn penthouse.

so what ya think?

[URBANNINJA]

jep im runnin 400w on 60x60x140cm and no heat props....in summer i make a break and do outdoors cause i live under the roof too and even a 200w cfl caused massive heat props.....only thing u can do get a ac otherwise forget penthouse n sumemrgrows!!

[Dust]

i agree with the guys, it should be ok, make sure that the room where the tent is stays cool anough and the plants shoud be fine.

But be careful with the 1,60m don't veg your ladies for too long they will quickly miss space otherwise or bend them train that as you want but think about height always