What light for mothers

[flatcat_auz]

How much heat does it give off?

 

My 130w CFl gives of a little heat although I am yet to correctly ventilate my mother/clone area........at the very top space 30c and at the lowest (root zone) 22c. I know some people trip at temps 28+ but my plants seem to handle 30c with no probs. I wouldn't like to go any higher though. Space is approx 1mx1m by 1.2 high.

[wheelchair]

I found those 130w lights and theres three 2700k, 6400k and 14000k obviously 2700k is for flowering but Im deciding between the 6400 and the 14000k

[flatcat_auz]

My CFL is 14000k.....more details when I salvage the box from the shed.................. Edited July 18, 2009 by flatcat_auz

[BaronS]

only that I've been looking into it.

 

It is suggested that the high watt (130) CFLs are not as efficient as lower. Think about your room. Would it be better to spread half a dozen 25W around the space? 6 bayonet 'hanging' fittings, an extension lead to cut up for wiring, some sort of hat for the bayonet holders... or you could do same with Edison fittings.

[auzziebuds]

so these lights would work great in say a 1m,1m,1.2m room and keeping say 6 mums? what about venting for a room and light that size? what would work best? cheers

[BaronS]

I'm still experimenting and have actually been unable to get the lights I wanted but if you look at the most recent pics from my 'a small cupboard' diary

https://cannabis.community.forums.ozstoners...16&start=16

I suggest I'm getting decent growth rate using 'off the shelf' CFLs (mostly purchased from the $2 shop).

 

At 850*550 area I'm happy to call it 0.5m^2 and am currently running:

1*48W 5000K,

2*20W 6400K and

2*26W 'Daylight' (ie. they do not have the temp stamped, just 'daylight')

 

something I've been watching for is how light penetrates the canopy. All other factors being equal I suggest that the spread of lights helps with this, part of the canopy may shade lower parts from one light but with multiple lights it gets in at another angle. I'm pretty well prepared to suggest as a 'general principle' many small lights will beat a single light regardless of type.

 

http://www.aussieponics.com/index.php?act=...mp;productId=22 has a spectrum chart for 130W Growlush and it confuses me as to why there is a significant peak in the green band. They also have the spectrum (in a slightly different format graph) for the 2700K http://www.aussieponics.com/index.php?act=...mp;productId=23 but do not appear to stock the 14000K (which reading tells me is more used for marine plants and corals).

 

It is suggested that though the 14000Ks are mainly outputting blue they still pump out sufficient red/orange, but I can't find a chart for them at the moment. In the larger 1m^2 space I might use 1*14000K and a couple of 6400Ks, all 130W, but I'd actually more probably use a greater number of, say, 48W, to get that spread. 9 fittings with a 4+5 mix of the two temps would seem to be reasonable.