I am running 27 watts per square foot, a little low but I am getting buy. I can't imagine what it would look like in there with 90 watts per square foot.
Keeping it real the 90 watt number is for sure the high side of things and crush HPS square foot for square foot. Most of my areas are at 60 watts PSF range and do at and above 1GPW.
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MUAHAhahaaaa....
That's WITH the FLASH!
375w DRAW (just checked)
22" x 26" space
:48:
You should crush it if you can keep the heat down and them properly fed. Please understand at that wattage and size things will change real fast if you are out of range, so keep an extra close eye on your plant and look at it under some natural light each day. Magnesium issues are what I normally see happen first if not addressed.
4 of the 700 watt Mars II hanging over my 3x3 eb table in my 4x4 room would give me the 90 draw watts per sqft........... gives me a hundred pounds of lights hanging over my plants at a cost of $1100.00 give or take a dollar. ........ seems like a heck of a lot of led lights.
The 90 watts per square foot that everyone is starting to use is a little misleading, so please let me clarify. Lets say you have an area to grow in like a master bed closet that is 5 x 5 but you are only growing one plant. To allow for loss of light you need to be at around 90 watts per square foot, and what I had also previously stated is that one would equal of better HPS at twice the wattage. In other words, that .5 GPW that most achieve at 1000 watts of HPS can now be achieved at 500 watts of LED tech.
If you have more of an area to light and will be using several fixtures you really only need about 60 watts PSF, due to reflection and the overlapping of lights with no wasted coverage.
I'd rather people throw around the 60 watts PSF over 90 TBH.
I'd put 540 watts of power over that 3x3 and call it a day. You should kill it with the right strain.
Mars II LED Grow Light 900W looks good. PJ if you were gonna buy a LED light for a 4x4 area which one would you buy, and why?
I would just build 4 of my 180's and call it a day. I now engineer my own lights and have them made.
He would buy 4x Mars II 400w fixtures. More fixtures, with less watts is the way to go. Large fixtures aren't are good as many smaller ones.
That's what I would suggest to others yes. If I was to meet a hotdog like myself that likes to play with tech and take chances I have a new light design done on a COB style light rated at 460 watts with a new style lens to cover some serious area. I hope to be running some tests in the next few months and see if it is worth marketing. There's just no way to compete and most don't want to spend the kind of coin it takes to build a light of this nature.
Ahh, I have not even began doing research on LED's, just know thats the next logical step for me.
I started using the tech about 6 years ago and still am learning all the time. It isn't HPS growing for sure.