250 watt hps vs 400 watt hps?
- Thread starter GTBuds420
- Start date
strangerdude562
Well-Known Member
400 hps for sure
Landragon
Well-Known Member
Well, if the heat can be controlled, the 400 will provide denser buds and a larger yield. However, it will also be overkill in that small space, as well as making much more heat than the 250. If you get a quality reflector, and have excellent reflection in the space itself, the 250 will be more than adequate. With all this in mind, a 250 in average hands provides for one daily smokers needs. A 400 can do more like three. Your spaces size limits realization of potential of a 400 w. You will get more, but you will get there with less efficiency.
GlassFreak
Well-Known Member
i think 250 suits ur space much better, platnts will be constricted in suck a low area, the light needs to be like 20 in. away from the plants, as soon as u switch to the flowering they wont have any room to grow. do u have very good ventelation?
blacksnow
Well-Known Member
With only 3.5' of height you will need a cooltube. I dont think you can keep the light cool enough with an air cooled reflector.
You would need to keep the light too far away from the plants restricting how big your plants can be.
With a cooltube and a good fan you can keep the light much closer, not only allowing for more penetration of light, but for larger plants =]
Besides cooltubes are about the same cost as an air cooled reflector]
check out www.htgsupply.com
TheFaux
New Member
They serve the same function.
Get the 250 for that space, but get the 400 if you think there is a possibility of an upgrade in grow space.
