250 Watt HPS Proximity to Foliage? Please Help

purplecream said:

That hand shit is stupid, put a thermometer at the top of your canopy to see what the temp is. If it's over 83 it's too hot in my opinion i have my 250 watt hps about 9inches above my canopy and my temps are 78 at the top of the canopy. Here's a chart that you can use to measure the distance.

Click to expand...

darkdestruction420 said:

That in my opinion is dumb. I keep my hps as close as possible to get them as much light as possible and although the temps may go into the lower 90-95 range sometimes when its hotter outside and they grow much faster than when i still believed all those silly little myths and kept them farther away. if youve got good air circulation its not a problem at all. Nature doesnt always give the plant perfect temps and they seem to do just fine out there.......

Click to expand...

fabfun said:

put your hand under it and raise it till u feel the heat and then you will know
i just picked up a 250 watt hps street light for $5.Going to fire it up tomm
since my my mh 400w ballast wont fire my new hps conversion bulb
when i do i will let u know about the height

Click to expand...

purplecream said:

That hand shit is stupid, put a thermometer at the top of your canopy to see what the temp is. If it's over 83 it's too hot in my opinion i have my 250 watt hps about 9inches above my canopy and my temps are 78 at the top of the canopy. Here's a chart that you can use to measure the distance.

Click to expand...

fabfun said:

well thanks i was actually looking for those charts couldnt remember where i seen them + rep

Click to expand...

darkdestruction420 said:

That in my opinion is dumb. I keep my hps as close as possible to get them as much light as possible and although the temps may go into the lower 90-95 range sometimes when its hotter outside and they grow much faster than when i still believed all those silly little myths and kept them farther away. if youve got good air circulation its not a problem at all. Nature doesnt always give the plant perfect temps and they seem to do just fine out there.......

Click to expand...

purplecream said:

That's true, but the beauty of growing indoors is that you can provide perfect growing conditions. But like i said in my opinion it's too hot, everyone grows different though. +rep for the input


Oh yea +rep back at ya fabfun.

Click to expand...

5 String said:

Thanks Fab, I've heard of the hand method and makes sense. good luck on the street light, let me know if it works.







Damn Purple, a little harsh dude. I didn't mention any thing about temp problems.
But thanks for the chart I couldn't find it.







Nice attitude, Fab +rep to you




Thanks Dark, This is what i was thinking but wasn't sure. Its only a 250w. Thanks again




Again not a temp thread, but you make a valid point. However high temperatures can be overcome with CO2 and good circulation. In fact I'm starting to think CO2 is a necessity for thick hard nugs.


And + rep to all for answering my call for help. THANKS GUYS

Click to expand...

purplecream said:

but the beauty of growing indoors is that you can provide perfect growing conditions.

Click to expand...

Spanishfly said:

The SUN is the perfect light, the light the plants evolved under - little lamps are dim in comparison and far from perfect. No one ever got a pound a plant with CFLs.

Click to expand...

fabfun said:

well my 400w took a crap in one room so i wired up the salvage yard $5 hps 250 watter bulb cost $21 at home depot

Click to expand...

whats ittoyabub said:

im running 1000W with the CO2 sheets that u hang and my nugs are dense as fuck

Click to expand...