ÒÒlegilizeitÒÒ
Well-Known Member
You are totally right there, the sf4000 and 1000w HID are not 1 for 1 exactly. I have added 3 sf1000s and now have more light than I did with my 1000w
The SF4000 is very comparable to a 750w HID though
300$ light??
- Thread starter Datcoldboi
- Start date
The SF4000 is very comparable to a 750w HID though
getogrow
Well-Known Member
My point is that wasting electricity is MUCH better then playing with defs and "tuning" ect.... If he has never seen a problem running 70 DLI then its not hurting anything , carry on.
getogrow
Well-Known Member
Same here , i replaced 2x 1k hps for 2x 650w bar lights. Its no where near a 1 for 1 trade but its a base to start at. Im lacking that intense light right under the hps but i gained more light around the edges, now my girls all look the same. The center plants are not bigger then the outside plants like hps. So overall , i have more light output then 2k hps with 1200 actual watts from the wall.
getogrow
Well-Known Member
The first part is debateable on a small level and the second part is spot on. if your room is 500 ppm then your stuck there but if your room has little or no fresh air coming in then your limiting factor is going to be the airflow causing the co2 to be very low. a tent is a good example , if it does not have good fresh air coming in then your co2 ppm is going to be 200 ish where as if you pump fresh air in it will raise up to 4 or 500 ish.
So not saying your wrong at all, just adding to it....
Datcoldboi
Well-Known Member
80$ for the light in your link? Is this a trustworthy source?
Datcoldboi
Well-Known Member
Im using a Timber 4VS in my main tent
ÒÒlegilizeitÒÒ
Well-Known Member
You can get the same light on Amazon
Mars lights are pretty decent
Not top of the line, but good
I'd also point out that due to the hight of the sun in the sky and clouds etc, the sun doesn't deliver full power all day, a light can.
jimihendrix1
Well-Known Member
How much solar power does a square meter receive?
Translation: At high noon on a clear day, each square meter receives 1000 watts of solar power... And its way more at the equator, and in the Andes Mountains. 10-14 kwh/m2/day, and super high doses of UVA/B. Equador has been observed as having as much UVA/B as Mars at 20,000ft. 26 on the 1-10 scale.
ÒÒlegilizeitÒÒ
Well-Known Member
Great
Now look at DLI which is actually relevant to plant growth
No where in the country receives more than 65 DLI (and thats only at the peak of the season)
During flowering, there's no where in the country getting over 45 DLI
jimihendrix1
Well-Known Member
Thats for USA, not the Equator. USA is nothing compared to the equator, and then add in 8000ft altitude. Also looks like it can go to 65.. Im hitting what? 70?? Which is less, or the same as some places at the equator, and at 8000ft altitude.
Normal ranges
Outdoors, DLI values vary depending on latitude, time of year, and cloud cover. Occasionally, values OVER........ 70 mol·m−2·d−1 can be reached at bright summer days at some locations
Notice it says.. MORE THAN 70 in some places?????
Normal ranges
Outdoors, DLI values vary depending on latitude, time of year, and cloud cover. Occasionally, values OVER........ 70 mol·m−2·d−1 can be reached at bright summer days at some locations
Notice it says.. MORE THAN 70 in some places?????
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For a 2.5 x 5 I'd make two lights with 2 foot strips and Meanwell 200 or 240 watt drivers.
DIY LED Strip Build Designs for Samsung H-Series, F-Series, Q-Series, and Bridgelux EB Gen.2 - LED Gardener
DIY LED strip builds have become very popular recently. The mid-power section of our forum is full of threads created by DIYers looking to build their own custom lights, and new builds and ideas are surfacing every day. If you don’t live somewhere where you have easy access to premade lights...
ledgardener.com
DIY Guide - LED Strips
LED strip lights In this chapter, we build an efficient grow light using LED strips and an aluminum frame, that also serves as a heat sink. Power consumption varies between 180W - 480W depending on the LED driver selection and the number of LED strips used.
sites.google.com
ÒÒlegilizeitÒÒ
Well-Known Member
Lol your point is still moot
Botanists study this stuff.
Cannabis maxs out at 60 DLI with co2 ranges of 1500ppm
Without CO2 enrichment, they max out around 45 DLI
Nice.
I bought their diy kit. Which is basically the 4vs without the frame.
then added it into a old HPS air cooled hood.
All this talk about wasted electricity. Hahaha.
just like my gas guzzler Ford. You don’t have to have your foot into it all the time.
And we can all agree leds are more efficient turned down.
Here is 900watts Hindo packed into a 3x3.
If you can’t handle the power you should drive a KIA.
just like my gas guzzler Ford. You don’t have to have your foot into it all the time.
And we can all agree leds are more efficient turned down.
Here is 900watts Hindo packed into a 3x3.
If you can’t handle the power you should drive a KIA.
Datcoldboi
Well-Known Member
So your suggesting to buy a light that pulls 500w from the wall & just dim it down to my needs?
Datcoldboi
Well-Known Member
400w just to veg? I was gonna use this light to flower 2 photos first & the one im looking at (sf-2000) only pulls 200w from the wall
Datcoldboi
Well-Known Member
Naaa lol this is a closet in a spare bedroom that already has a grow tent in it. Might as well expand the whole damn bedroom at this pointMY point going into this one is that his closet will soon be his bedroom
kovidkough
Well-Known Member
every time you point this out I consider Leds just slightly more. perhaps it's time to get out of the stone age