Switching from HPS to LED Week 4 Veg?

B

bigbuzznutz

Member
Currently running 4 x HPS lights at 750w in a 10x10 tent. Plants are in Coco. Currently in W4 of veg. My experience is pretty limited and I’ve been behind the power curve far more than I care to admit. Thank you in advance for your help.

I decided to swap out my HPS lights and convert to LEDs due to heat/humidity issues inside the tent after bumping my wattage up to 1000. Plants are currently recovering under the 750w on an 18/6 light cycle.

Today I purchased two Growers Choice ROI-E720s to replace the 4 HPS lights in my tent. My questions are at what height would you recommend initially setting the LEDs at? And at what strength should I initially start at?
 
JoeBlow5823

JoeBlow5823

Well-Known Member
bigbuzznutz said:
Currently running 4 x HPS lights at 750w in a 10x10 tent. Plants are in Coco. Currently in W4 of veg. My experience is pretty limited and I’ve been behind the power curve far more than I care to admit. Thank you in advance for your help.

I decided to swap out my HPS lights and convert to LEDs due to heat/humidity issues inside the tent after bumping my wattage up to 1000. Plants are currently recovering under the 750w on an 18/6 light cycle.

Today I purchased two Growers Choice ROI-E720s to replace the 4 HPS lights in my tent. My questions are at what height would you recommend initially setting the LEDs at? And at what strength should I initially start at?
Click to expand...
You need 4 of those lights to replace the 4HPS lights.
 
PJ Diaz

PJ Diaz

Well-Known Member
JoeBlow5823 said:
You need 4 of those lights to replace the 4HPS lights.
Click to expand...
How do you figure? The fixtures he bought put out around 1900umol. A HPS fixture at 750watts puts out what, like 1300umol? I'm pretty confident that three of those units would replace four 750w HPS fixtures, plus the reduced power consumption will help with his heat issues.
 
PJ Diaz

PJ Diaz

Well-Known Member
bigbuzznutz said:
Currently running 4 x HPS lights at 750w in a 10x10 tent. Plants are in Coco. Currently in W4 of veg. My experience is pretty limited and I’ve been behind the power curve far more than I care to admit. Thank you in advance for your help.

I decided to swap out my HPS lights and convert to LEDs due to heat/humidity issues inside the tent after bumping my wattage up to 1000. Plants are currently recovering under the 750w on an 18/6 light cycle.

Today I purchased two Growers Choice ROI-E720s to replace the 4 HPS lights in my tent. My questions are at what height would you recommend initially setting the LEDs at? And at what strength should I initially start at?
Click to expand...
Post pics of plants to give us a better understanding of your situation.
 
JoeBlow5823

JoeBlow5823

Well-Known Member
PJ Diaz said:
How do you figure? The fixtures he bought put out around 1900umol. A HPS fixture at 750watts puts out what, like 1300umol? I'm pretty confident that three of those units would replace four 750w HPS fixtures, plus the reduced power consumption will help with his heat issues.
Click to expand...
Because he has a 10x10 and is trying to run 1000w worth of HPS but he can not because of heat. Two led boards covering an entire 10x10. Not to quote god but, C' Mon MAN!
 
JoeBlow5823

JoeBlow5823

Well-Known Member
PJ Diaz said:
How do you figure? The fixtures he bought put out around 1900umol. A HPS fixture at 750watts puts out what, like 1300umol? I'm pretty confident that three of those units would replace four 750w HPS fixtures, plus the reduced power consumption will help with his heat issues.
Click to expand...
And not to mention, a philips bulb puts out 2120umol at 1000w and 2400 at 1150w.

greenltg.com

Philips AGRO Plus DoubleEnded HPS1000W DE EL - Green Lighting

Philips MASTER GreenPower Xtra 1000W EL Formerly Philips AGRO Plus Double-Ended High Pressure Sodium (HPS) EL Lamp, 1000W This Item is Discontinued we stock Ushio Pro Plus Spec sheet: 928152419216_Philips 1000WDE The most experienced brand in HPS DE since 2005, Philips understands professional...
greenltg.com greenltg.com

He needs 4 of them.
 
PJ Diaz

PJ Diaz

Well-Known Member
JoeBlow5823 said:
Because he has a 10x10 and is trying to run 1000w worth of HPS but he can not because of heat. Two led boards covering an entire 10x10. Not to quote god but, C' Mon MAN!
Click to expand...
a mongo frog said:
Foot print maybe. Dude has 50 plants under 4 1000 watt lamps dimmed in a 10x10 tent.
Click to expand...
My bad, I thought he had a 5x10, but honestly that's irrelivant, because the question wasn't how many fixtures he needed to fill the space, it was about how many LED fixtures he needs to replace 4 HPS @ 750w.
 
PJ Diaz

PJ Diaz

Well-Known Member
JoeBlow5823 said:
And not to mention, a philips bulb puts out 2120umol at 1000w and 2400 at 1150w.

greenltg.com

Philips AGRO Plus DoubleEnded HPS1000W DE EL - Green Lighting

Philips MASTER GreenPower Xtra 1000W EL Formerly Philips AGRO Plus Double-Ended High Pressure Sodium (HPS) EL Lamp, 1000W This Item is Discontinued we stock Ushio Pro Plus Spec sheet: 928152419216_Philips 1000WDE The most experienced brand in HPS DE since 2005, Philips understands professional...
greenltg.com greenltg.com

He needs 4 of them.
Click to expand...
Did he say somewhere he was running a DE? Also he said he was running them at 750w. Oh, and that ppf is for the bub not accounting for any reflector loss.
 
JoeBlow5823

JoeBlow5823

Well-Known Member
PJ Diaz said:
My bad, I thought he had a 5x10, but honestly that's irrelivant, because the question wasn't how many fixtures he needed to fill the space, it was about how many LED fixtures he needs to replace 4 HPS @ 750w.
Click to expand...
No he is looking to improve on watts per square foot without getting to hot. He wants 1000w of HPS power out of led bulbs.



And yes, i run a philips bulb at 1100w in a 5x5 and the girls love it. This dude needs 4 of those led boards.

IMG_7221.JPG
 
JoeBlow5823

JoeBlow5823

Well-Known Member
PJ Diaz said:
Did he say somewhere he was running a DE? Also he said he was running them at 750w. Oh, and that ppf is for the bub not accounting for any reflector loss.
Click to expand...
I assume everyone is running DE when they have 4 or more lights. Either way, that is the power he is looking for.
 
B

bigbuzznutz

Member
JoeBlow5823 said:
You need 4 of those lights to replace the 4HPS lights.
Click to expand...
Thanks man. Just fucking around in the other reply. Unfortunately there isn’t ceiling space for more than three. And with the outtake fan and duct work eating up one side I think two would be the best I could do. Maybe I’ll just stick with the HPS.
 
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