250w HPS Club And Help Guide

**stoneslacker** · 07-23-2012, 09:46 AM

Originally Posted by 10acjed

I switched from a 4ft 4bulb, much better for me. I switched early tho so they were only a few weeks old, but much easier to deal with space, and its actually cooler being I have much more room for airflow.
Dont have to worry about only having 3" of effective light, also if you have good airflow and cooling they can get pretty close to a 250W bulb, mine have been as close as 4" at times without burning.

With a fan blowing between the bulb and canopy I have my 250w 4-7 inches from my canopy. Thats with avg air temps 93+ in my grow box. I know people say to take temp at the canopy but I find cannabis can handle much higher radiant heat from the bulbs so my gauge is at canopy height shaded from the direct light. Just have lots of ventilation and air movement and push the limits of how close you can get.

**10acjed** · 07-23-2012, 11:15 AM

Originally Posted by stoneslacker

With a fan blowing between the bulb and canopy I have my 250w 4-7 inches from my canopy. Thats with avg air temps 93+ in my grow box. I know people say to take temp at the canopy but I find cannabis can handle much higher radiant heat from the bulbs so my gauge is at canopy height shaded from the direct light. Just have lots of ventilation and air movement and push the limits of how close you can get.

I go by overall temps inside the box too.

If I stick my thermometer under the light it will hit 88 - 90, anywhere else inside its 77/82.
From what I read they stop, or slow growth after 85, so I dont see that happening. My temps have not changed, and if they are slowed in growing thats a good thing, cause I'd be out of room lol...

The two pics I posted were taken 21 days apart from what my folders show..

**RCgrowerman** · 07-23-2012, 12:33 PM

my new 250w hps setup that i upgraded from a T5 2 footer so im expecting good things this harvest. Any tips from grower vets are much appreciated!002.jpg 003.jpg

**RCgrowerman** · 07-23-2012, 01:43 PM

I use wax coated strings as well and it works great, never had stem issue with it.

**stoneslacker** · 07-23-2012, 02:29 PM

Originally Posted by RCgrowerman

my new 250w hps setup that i upgraded from a T5 2 footer so im expecting good things this harvest. Any tips from grower vets are much appreciated!002.jpg 003.jpg

I would turn that fan horizontal and drop your hood down some. Start at 9 inches or so from the canopy, have that fan blow between the hood and canopy and monitor the plants frequently till you find that "goldilocks" zone. I have my light about 5 inches from my canopy with no bleaching or other issues. Had I not had so many overall temperature issues I would have run my cfls too.

**RCgrowerman** · 07-23-2012, 03:14 PM

Thanks for the speedy reply! I made the adjustments as per your recommendations and the temp actually went down a little bit so thanks for the help =)

**cbtbudz** · 07-23-2012, 08:38 PM

SANY0016.jpg SANY0026.jpg SANY0027.jpg SANY0028.jpg SANY0029.jpg SANY0030.jpg SANY0031.jpg SANY0017.jpg SANY0018.jpg SANY0019.jpg SANY0020.jpg SANY0021.jpg SANY0022.jpg SANY0023.jpg SANY0024.jpg SANY0025.jpg
PIC:
1.power 10.pre98 bubbax
2.willie nelson budshot 11. diy co2
3.power 12,13,14.pre98 bushots
4.bluelarry 15.willie nelson
5,6,7.Patio plant 16.willie nelson bs
8.power bushot
9.sfv og

**georgyboy** · 07-23-2012, 09:01 PM

cbt, how do you always have so many plants going all the time? You hit us up with a non-stop assault of pictures of wonderful flowers and I love to see them, but assuming your growing with a 250w light, how the hell do you do it? The pic 15 willie nelson plant looks like it is 2 feet tall and 2 feet wide. That's half a 250's foot print all on it's own.

**kinetic** · 07-23-2012, 09:21 PM

Originally Posted by RCgrowerman

I use wax coated strings as well and it works great, never had stem issue with it.

Lacing cord by chance? I use this at work and for allot of other things...

**cbtbudz** · 07-23-2012, 09:45 PM

haha i was just thinking about that.my boy has same 250w as me and i get 2-3X as many harvest.well training has some to do w it. my grow footprint is about 40"x 22".and i just started a new idea i leave my 250w on 17hrs a day and use 2 30w cfl for other 7hrs.then have 2 sets of flowering plants.a little extra work but yeild nice and often.i dont even know if that made any sense im blown right now.