How strong is a 800 watter HPS

jimmyspaz

jimmyspaz

Well-Known Member
Well if you can do 3X3 with one you should be able to about 3X6 with two. The lumens is simple addition just double one.
 
BryanG1983

BryanG1983

Well-Known Member
[FONT=Verdana, Arial, Helvetica, sans-serif]Indoors, 2000 lumens per sq. ft. is about as low as you want to go indoors. If you get under this mark, plant growth will certainly not go as fast as possible, and internode/stem length will increase. Also, light distance to plants will be much more critical. Daily adjustments to the lamps will be necessary, meaning you get no vacations. 2500 lumens psf should be a good target[/FONT]

400 hps is around 45k lumens
 
lastfrontier

lastfrontier

Well-Known Member
so that is 4500 lumens per plant at 10 plants is that enough light for 10 plants per light total 800 hundred watts = 20 plants at 112.5 lumens per watt total 90,000 lumens?
 
lastfrontier

lastfrontier

Well-Known Member
some out there say a CFL cant do what an HPS can do thinking along those line could a CFL set up pulling 840 watts producing 80,000 lumens close to the plant since light travel is a problem in CFL's could this set up be used to produce say 15 plants what do you think scaling back a bit from 20 plants since there is a diffrence in lumens of 10,000 and taking into mind the ability of the light to travel ??? i wonder
 
BryanG1983

BryanG1983

Well-Known Member
''CFL's do not have the danger or heat problems that HPS and MH have also it cost more all around to dissapate the heat and the smell with it also CFL's are self ballest in most cases and there are so many that if one goes out you dont have to shell up 150.00 or 250.00 or what if the ballast goes out what if either of them fail while you are out of town and you loose the crop if one or two fail then i loose a few lumens and keep on rockin again consider the fire danger while you are gone a fan can fail of trip the braker also they use less wattage and you are able to spread the light as you see fit in most cases instead of coming from a central location high above i will say in defence of the production grower large intense lights are a good and usefull thing because it cuts down on the doliers per OZ of production that in my opinion is the onley time you would need the extra lumens i my self will never grow more then 14 plants at a time i get around 3-5 OZ per plant with that light at 14 plants only geting 3 OZ per is still 42 OZ every 4 months what the hell will i do with all that and i am only using about 420-680 watts when you have MH and HPS you are stuck with on or two kelvin ratings and that is it with CFL's i can swap the kelvin rating as i see fit mabey i want to flower at 2100 kelvin mabey i like 6500 kelvin for veg or mabey i want to try 4500 kelvin for veg and see if i get a better sun leaf with CFL's there is room for discovery and creativity we know that all strands are not the same and come from diffrent parts of the world mabey you would like to plant all dark purple indiga and the next crop you want to plant a virgin sativa they have diffrent requirments for light and with CFL's you can provide that with half the cost just remember people that the higher you go in watts when buyin a single CFL bulb the lower you go in lumens per watt stay at 26-55 watts and that is the best spot to stay...................... here are the periods that belong up there disperse them as you please''
 
DWR

DWR

Well-Known Member
BryanG1983 said:
''CFL's do not have the danger or heat problems that HPS and MH have also it cost more all around to dissapate the heat and the smell with it also CFL's are self ballest in most cases and there are so many that if one goes out you dont have to shell up 150.00 or 250.00 or what if the ballast goes out what if either of them fail while you are out of town and you loose the crop if one or two fail then i loose a few lumens and keep on rockin again consider the fire danger while you are gone a fan can fail of trip the braker also they use less wattage and you are able to spread the light as you see fit in most cases instead of coming from a central location high above i will say in defence of the production grower large intense lights are a good and usefull thing because it cuts down on the doliers per OZ of production that in my opinion is the onley time you would need the extra lumens i my self will never grow more then 14 plants at a time i get around 3-5 OZ per plant with that light at 14 plants only geting 3 OZ per is still 42 OZ every 4 months what the hell will i do with all that and i am only using about 420-680 watts when you have MH and HPS you are stuck with on or two kelvin ratings and that is it with CFL's i can swap the kelvin rating as i see fit mabey i want to flower at 2100 kelvin mabey i like 6500 kelvin for veg or mabey i want to try 4500 kelvin for veg and see if i get a better sun leaf with CFL's there is room for discovery and creativity we know that all strands are not the same and come from diffrent parts of the world mabey you would like to plant all dark purple indiga and the next crop you want to plant a virgin sativa they have diffrent requirments for light and with CFL's you can provide that with half the cost just remember people that the higher you go in watts when buyin a single CFL bulb the lower you go in lumens per watt stay at 26-55 watts and that is the best spot to stay...................... here are the periods that belong up there disperse them as you please''
Click to expand...
cfl's sucks... dont ever buy em... you will just be another lol...

believe me... maybe u will get a nice plant.. but pls.. man pls... dont go with cfl's... !

^^ so cheap and tacy.... i am really pissed off with what this forum said a bout cfl's.... ^^

^^
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^^
 
BryanG1983

BryanG1983

Well-Known Member
I agree, best to get an HPS, i copied that post from somewhere else to give him an idea.

HPS all the way!!
 
lastfrontier

lastfrontier

Well-Known Member
that was my post i got rid of my hps it wasnt that it was bad to grow with its just your stuck using all those watts all the time and your stuck with that kelvin rating diffrent spectrums do diffrent things to the plant you know what if i wanted to grow 1 plant or just do some cloning or cross polinate 2 plants i dont always want to run 600 watts i dont need all those watts for vegging or just one plant also cloning see i use 15 26 watt bulbs and that equals 390 watts i use a blue spectrum and they flip out 6500 kelvin 26,250 lumens
 
B

budman500013

Active Member
ive got a 400w hps and get 55000 lumens...so if i had 2 i could get 110000 lumens verses the 80000 using less wattage than cfls with a 30000 lumens gain. not saying cfls dont work...just saying mh/hps is better imo. is my thinking right here?
 
cheetah2007

cheetah2007

Well-Known Member
the only thing imo that the cfl are better is that the plants don't strech so much like with the HID lamps.otherwice i think HIDs are much better.
 
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