600 watt lights

[LexLuthor]

Hi Lex,

You make a mistake in my opinion. 1 lx = 1 lm/m2 = 1 cd·sr·m–2.
The 50k is on a square of 1m2. http://en.wikipedia.org/wiki/Lux
So when 3 400W lamps beam on a 1m2 square at 25cm from the
bulb it is for sure 90k. When you want keep 1 meter between bulb
and plant a 400W can't compete with a 600W but when you reduce
the distance and use more 400W bulbs to get a better light spread
the 400W is better then 600W because you reduce the heat print
on a small spot with the 400W compared to 600W.

Reread my other reply and hope it is clear.

HD

Ok, you never said 3 400w bulbs per m2 in your previous post so you are correct about 90k lum. Now, I can get 2 600w bulbs per m2 and get more penetration compared to 3 400's. So why would you squeeze 3 400's over each m2?? Its not gonna reduce the heat print per m2 when compared to 2 600's because they release the same amount of heat (they both equal 1200w and about 165,000 lum., so based on your theory its better to have 8 150w bulb over 1 m2 because it reduces the heat print on a small spot compared to 3 400's?? Like I said before its still misleading because there is always a trade of with HID's, more intense bulbs equals more heat, even if you cram a bunch of small bulbs together it just ends up building more heat per added bulb.

I'm not gonna go back and forth with you, if you honestly think 400's are the best then use them, but you don't have to go around telling people 400's are better because of less heat. Thats like me saying a 150w HID is better then a 400w because they release less heat. With proper ventilation and cooling the 1000w will outperform all the others per bulb. Have a nice day hennep, peace.

 

[Hennepdesk]

Hi Lex,

I only tell and show what I do. No one has to copy and all can stay with their
1000W but at the end the grams count.

What is in your opinion the max Watt a plant can handle on a square meter?
How do the leaves look from a plant straight under the 1000W or 600W?
The leaves curl and can even turn white. That's because of to much heat and
lumen.

Thanks for the reply,

HD

 

[LexLuthor]

Hi Lex,

I only tell and show what I do. No one has to copy and all can stay with their
1000W but at the end the grams count.

What is in your opinion the max Watt a plant can handle on a square meter?
How do the leaves look from a plant straight under the 1000W or 600W?
The leaves curl and can even turn white. That's because of to much heat and
lumen.

Thanks for the reply,

HD

My opinion is around 100 watts per sq.ft. is ideal for cannabis, but it depends on alot of other factors, i.e., stage of growth, RH, temps, ect. The reason leaves curl and/or turns white is because some people can't control there environment so it gets too hot or humid or too dry and they put light bulbs too close to plants without proper cooling and/or ventilation. With proper cooling and ventilation a 1k will outperform all other bulbs with all factors constant, it just needs to be used properly. A 1k watt bulb is not ideal for all grows because some people have small 2'x2' area's (for example) and a 400w would be better under those circumstances, so in an area big enough for a 1k it will get too hot only if there is a lack of cooling/ventilation or the bulb is too close, which IMO that means its not being used properly.

 

[d420dool]

im wit lex i was thinkin the same thing IMPOSSOBLE

 

[d420dool]

o its 3 of em neva mind

 

[Hennepdesk]

I'm happy you say IMPOSSOBLE ... its IMPOSSIBLE and yes that's true.
For many my way to grow looks IMPOSSOBLE and I'm happy for that.
To have a discussion is good, when you know your maths its better,
when you understand chemistry you have an advance but when you
can combine them all ... you'll get where I'm. For me it ain't a competition,
I only want to share what I know and how I grow my plants.

HD

 

[Hennepdesk]

Let me show the 2x 24x 400W room so you can see how I grow.



HD

 

[LexLuthor]

o its 3 of em neva mind

Thats the point, 1 400 or 1 1k?? of course the 1k is better, but 3 400's over 9 sq.ft. (m2) or 3 1k's over 25 sq.ft., its probably about the same yield per sq.ft., but your gonna have alot more space with the 1k's so your gonna get alot more yield. You can't really compare apples to oranges, 3 400's = 1200w and 1 1k = 1000w so of course you might get a lil extra bud because of the extra light, but per light the 1k will out yield every other light at any given time.

 

[symbiote420]

I like H's garden but that's also why I had stopped commenting lex! In a world where everybody can't afford a 10+ light set ups and all the knick-knacks it takes to run it efficiently, his info is more for the advanced grower it's not helping the basic grower much at all. The initial question was "600 vs 1000?" Anyone with the money and space can take that advice he's given and go wild with it but the budget grower needs the best advo on single light system wattage for max yields and that's a 1k allday!! Plus it'll save ya $$$ from having to upgrade later.

If you are shopping for one light only get the 1k, you will be happy you did!

 

[Hennepdesk]

Thanks for the replies and positive vibes.

The question by d420dool was:"hey guys im upgradin my setup from 400 to 600 so i was wonderin if any1 had any recomendations thanx."

So my recommendation would be and still is ... stay with 400W and change the setup.
Lets make some calculation. First to know is how to count the result. Do you count in
gr/W? gr/W/day? gr/m2? gr/m2/day?

When you count for cost you should count for sure gr/W/day.
20 days vegging x 18 hours x amount of lights x Watt = .......... W
65 days flowering x 12 hours a day x amount of lights x Watt = .......... W
Add the Watts together and divide it by the days. This is your W/day

Now you have to know your yield in gr. The weight you divide by the
W/day. This will give a 0,0.... gr/W/day.

For example: For a 400W lamp you need 440W to operate. 400W for the
lamp and 40W for the ballast. So count 10% extra to the wattage of the
used bulb to compensate the power consumption by the ballast. I use 10x
400W on 7m2

I don't veg at all so the first calculation:
0 days vegging x 18 hours x 10 lamps x 440W = 0 W
56 days flowering x 12 hours a day x 10 lamps x 440Watt = 2956800 W
2956800 W / 56 days = 52800W/day
The harvest is 4000gr / 52800W/day = 0,0758 gr/W/day in procent (x100)
will give an efficiency of 75,8

Now with vegging and the time a normal strain flowers
20 days vegging x 18 hours x 10 lamps x 440W = 1584000 W
65 days flowering x 12 hours a day x 10 lamps x 440Watt = 3432000 W
1584000 + 342000 = 5016000 W
5016000 W / 85 days = 59012 W/day
The harvest is 4000gr / 59012W/day = 0,0678 gr/W/day in procent (x100)
will give an efficiency of 67,8

The gr/m2 will be the same for both calculations so this is why it doesn't
say much.

4000 W / 7m2 = 571,4 gr/m2 when you add the days then you can compare.

571,4 / 56 days = 10,2 gr/W/m2
571,4 / 85 days = 6,72 gr/W/m2

I didn't count in costs because when you veg you also have to count the extra
nutrients.

So now we can compare every grow to gr/W/m2 and gr/W/day
Do you dare to add your numbers :D

HD

 

[symbiote420]

LOL Idk I needed to do all of that in order to grow great buds, sheesh I guess I've been slipping these 23 some odd years...I gotta get me a degree now! hahaha and I gotta tell peeps to stop telling me I have some of the best they ever smoked in their life too, because I'm doing things all wrong based on that!
I am speaking on my exp. alone, when I ran a 400w the yield was ok, 600w pretty good, 1k...niiiiiice!!! Here's some pics of my homie exit420's 1st time growing plants in his life harvest from 5 plants under the 1k I advised him to get. (ya I'm talking about harvest again bro)

Not bad for a complete newb just using FF OF soil, PBP nutes, & Calmag+....that's Cataract Kush/Ukhem gifted to me by a fellow farmer. I started em out he took over 2nd week after germ....he had already dried 1 plant out and had it curing so that's the buds from the last 4 drying on 3' racks, I told him to keep em separated and take totals count when it's done curing, he's so happy now and says he only noticed a $75/mo. spike in his bill running a veg and flower room, so let me do some math
$75/mo. x 2 = $150
Soil, nutes = $80
so for about $230 he can stay out of the non compassionate dispensaries that charge about that much for 1/2 oz here.........I think he's WINNING!!! lol

 

[tattoojim]

The talk of 600 Watt lights out preforming 1000 Watts comes from when you string multiple lights together. In my opinion anything under 3000 Watts should be done with 600 Watt lights not 1000's. Theres a lot more even distribution of light.

Also your bulbs are very important. At least get a GE bulb if not a hortilux.

If you have room for one light though. Get a 1000w its worth it. Now if you have room for 2 600's thats where 600's now become better then 1000's.

Chobble

why not a hortilux???

 

[tattoojim]

why not a hortilux???

haha musta been high..

 

[Hennepdesk]

I didn't smoke enough to understand you :p but I have enough dried to get to your planet :D

Prepared to vacuum and seal.

I show facts. Don't buy stories and fairytales

King size nuggets in 56 days. No veg and only with 400W.

HD

 

[tattoojim]

I didn't smoke enough to understand you :p but I have enough dried to get to your planet :D

Prepared to vacuum and seal.

I show facts. Don't buy stories and fairytales

King size nuggets in 56 days. No veg and only with 400W.

HD

now thats just being a dick...o_O you wish that was with just 400w

 

[tattoojim]

try 24 x 400...talk about a misrepresentation

 

[Hennepdesk]

Why you doubt? I only use 400W

HD

 

[tattoojim]

no doubt brother...try telling people you use 24x 400 .....you make it sound like you are some kind of grow god that uses only a 400 watt light..get real bro and tell the truth
24 x 400 watt light = ????

 

[Hennepdesk]

Sorry I misunderstood and last Friday I wrote:"Let me show the 2x 24x 400W room so you can see how I grow."
24 x 400 watt light = ???? you test me :) 9600W results in:

That's a lot of work every month to harvest a 9600W room because the rooms differ 1 month in time.

I'm no God ... I toucht the Gods how to grow.

HD

 

[tattoojim]

your funny bro.....you prolly think your herb is worth 5000 a pound lol
keep up the good work man :p