Does 2 bulbs @ 2000 lumans each......

[Oh F Yeah]

give me total lumans of 4000? Or does it stay at 2000 regardless of the number of bulbs?

Maybe a silly question, but I have read KP's Cannabis College and I still don't have an understanding.

Thanks guys, Randy

[xxxhazexxx]

read it again, more lights =more lumans:)

[invision]

its still 2000 lumens just a better spread of it.

[stinkyattic]

No, it is now 4000 lumens.
IF the bulbs are very close together and light the same area.
If they are far apart and do not light the same area, you now have 2 areas at 2000 lumens EACH.

[Oh F Yeah]

Thank you, Stinky. That's what I thought.

[stinkyattic]

Oh F yeah!
:D

[invision]

believe what you want it only 2000 lumens period.

when you add 1 gallon of 87 octang to a car then add another does that now give you 174 octang.....no

[stinkyattic]

believe what you want it only 2000 lumens period.


So why, when you go into home depot and look at ceiling fixtures, do you have the option of multiple bulbs in a single fixture... and I'm not talking about the decorative ones, I'm talking about the $15 'boob lights' that are just supposed to make the room bright?

Or can you say that a room with 100 candles in it is just as dark as a room with 1 candle in it?

Whatever. Who cares.

[GaGrown]

Hence the term " Candle Power".

Ga Grown!

[stinkyattic]

Hence the term " Candle Power".

Ga Grown!
eh! that's where I was going with that!
=p

[GaGrown]

believe what you want it only 2000 lumens period.

when you add 1 gallon of 87 octang to a car then add another does that now give you 174 octang.....no


So...... If you have 2 400 watt MH's it the same room. You only have 50,000 lumens and not 100,000? Lumens are a measurment that is used for a bulb by itself.Gasoline mixture is not the same.You got 2 gallons of 87 octane! Unless you add an octane booster or a gallon of 97 octane,then it's 87 octane no matter how many gallons,you get!

Ga Grown!

[stinkyattic]

.Gasoline mixture is not the same.You got 2 gallons of 87 octane! Unless you add an octane booster or a gallon of 97 octane,then it's 87 octane no matter how many gallons,you get!


Right... those units of measurement are totally different... octane is a proportion of the total hydrocarbons, whereas lumens is an absoulte value.

[Zandor]

ok my turn:

If you are talking CFL then the math is a bit different. The normal math we all use and some of you are talking about is for HID lights. Yes many terms are the same but the end results are not. CFL reflect differently and act in a different manor. It's hard to get depth of lumens with CFL they just can't penetrate that far. They are good for inches not feet so that is why most people place them as side light too.

They do and can grow some good bud if you use the right.

But if put them all on one plant reflecting in the same space then yes you would have close to 4000. But as it was said if you move them apart then you have 2000 lumens coverage over a greater area.

Its the depth of coverage that some of you are thinking about. That's how far the light penetrates into the plant folage.

[Oh F Yeah]

This why I asked, guys. With the idea being to have 2 6500K / 2000 lumans bulbs to be used to veg and then have the plants placed in ground/outdoor for flowering.

I think it will work out just fine. I have seen some closet photos on this very site that show similar (if not the same) bulbs hanging either side of the grow that evidently produce some fat-assed buds.
[attachment=o114805]

[Garden Knowm]

Always use 42 watt CFLs (150 watt equiveant).

Keep the bulbs 1 inch or less from your foliage... even slight burn from CFL is worth KEEPING THEM CLOSE!

iloveyou

[Oh F Yeah]

Right, Knowm. Thanks.