CFL's??

[highonthechroni]

Hi Mickey696, the risk is very low since the servers are hosted internationally. So the risk is the same as posting here on IC, really.

No personal information is required, where did you see this?

If you have any questions about MyBuds.co.za, feel free to ask me.

We need people like you to help our site 'grow' - c'mon!

 

[SmokingGreen]

Mybuds.co.za doesnt ask or store any personal info...same as any other pot site out there...

As HOTC mentioned, the servers are hosted internationally, but even if it was hosted locally i cant see how that will be any different....

Personally i think its safer at a small community as to a big one like this that can draw a lot more of attention from everywhere....

GOLDEN RULE OF POSTING ON THE NET : Think before you post stuff, and dont give out personal details.....

Its your call where you want to post but i hope you will join us at our SA community.....

 

[Truth]

fluorescent lights are useful, but only until it start approaching the cost of an HID on a setup. why? because HID's put out over twice the lumens per wattage, and I would rather take my 100$ and put them towards an HID than a fluorescent. the best way to use fluorescents, would be as a supplement to HID for all sides of the plants.

 

[Guest]

I think you have that backwards man, flourescents put out over twice the lumens per watt not hte other way around, go look at a lumen chart, I've been checking out these 250w CFl's that equal the same ammount of lumens as a 1000w HID

 

[Truth]

I think you have that backwards man, flourescents put out over twice the lumens per watt not hte other way around, go look at a lumen chart, I've been checking out these 250w CFl's that equal the same ammount of lumens as a 1000w HID

ok, say you have a 26w CFL, that produces 1800 lumens. say you have a 400w HPS that produces around 40,000 lumens. take 400 and divide it by 26. you will get approx. 15 - 26w bulbs to equal 400w of power. now you take 1800 and times it by 15. what do you get? 27,000 (round up to 30k if you like). say you keep your HID as close as 6 inches, you are basically getting 60,000 lumens. plus, store bought floros, aren't even meant for growing, though they do the job fairly well. the plant sensitivity curve is suited well by the HID grow bulbs. and lumens aren't even necessarily the power of a bulb, there are bulbs that better compliment the plant sensitivity curve and only push a little over 30K lumens, but show better performance.

there is a 200w CFL that pushes only 8,000 lumens, however it is full spectrum high definition. the price? $79.90 take that and times both by 2. you get 16,000 lumens, at a price of around 160$, and 400w of power.

do you know how many lumens a 1000w bulb pushes? 110,000+. I highly doubt a 200w CFL could produce that much, and at the same time, better replicate the plant sensitivity curve. (even if it could push 2 times as many lumens per wattage, 200w producing as much as a 1000w, would be 5 times as much)

 

[highonthechroni]

Other way around, Dank1.

 

[Guest]

lumens mean nothing to plants.

 

[highonthechroni]

What is important to plants again, the PAR rating or something?

 

[Truth]

the only importance are the spectrums of light the bulb produces that the plant can use. that is why there is regular bulbs, and grow bulbs. that is why there is MH bulbs and HPS bulbs. that is why there is full spectrum bulbs. when choosing bulbs, be very picky. don't settle for the cheap ones. they may grow under it, but no where near as well as they would under a better bulb. lumens are a measurement of the perceived power of light we can see. however, all the light we see isn't necessarily used by the plants.

 

[highonthechroni]

High there Truth

Hope this helps - some info on PAR rating (related to spectrum)

Photosynthetically active radiation
From Wikipedia, the free encyclopedia
Jump to: navigation, search

The expression Photosynthetically Active Radiation, often abbreviated PAR, designates the spectral range of solar light from 400 to 700 nanometers that is useful to terrestrial plants in the process of photosynthesis. This spectral region corresponds more or less with the range of light visible to the human eye. Photons at shorter wavelengths tend to be so energetic that they can be damaging to cells and tissues; fortunately they are mostly filtered out by the ozone layer in the stratosphere. Photons at longer wavelengths do not carry enough energy to allow photosynthesis to take place, and plants have developed, through billions of years of evolution, the capacity to scatter these photons away, hence the very high reflectance and transmittance of live green leaves.

Other living organisms, such as green bacteria, purple bacteria and Heliobacteria, can exploit solar light in slightly extended spectral regions, such as the near-infrared. These bacteria live in environments such as the bottom of stagnant ponds, sediment and ocean depths. Because of their pigments, they form colorful mats of green, red and purple. These organisms must make use of the leftovers discarded by the plant kingdom, in this case, light outside the PAR range.

Chlorophyll, the most abundant plant pigment, is most efficient in capturing red and blue light. Horticulturists say that blue light is the most important for leaf growth and that red light encourages flowering. Accessory pigments such as carotenes and xanthophylls harvest some green light and pass it on to the photosynthetic process, but enough of the green is reflected to give leaves their characteristic color. An exception to the predominance of chlorophyll is autumn, when chlorophyll decays earlier than the accessory pigments that remain to color the leaves red, yellow and orange.

PAR measurement is used in agriculture, forestry and oceanography. One of the requirements for productive farmland is adequate PAR, so PAR is used to evaluate agricultural investment potential. PAR sensors stationed at various levels of the forest canopy measure the pattern of PAR availability and utilization. PAR measurements are also used to calculate the euphotic depth in the ocean.

References:

* Gates, David M. (1980) Biophysical Ecology, Springer-Verlag, New York, 611 p.

 

[lowridersa]

Nice info HTC, shot.

 

[getafix]

Wow, that's loads of info...

Thanks for all the contributions!!

 

[Blunt Africa]

Hey y'all

I found that you can get 65W CFL's at Light Style at Fourways Crossing......

May be useful if any jozi boys/gals are looking for a stronger CFL....

 

[highonthechroni]

Nice Blunt

 

[DrBudGreengenes]

Hi HC - my post was largely in response to Getafix'x remark

personally, I would not say you can get a decent grow room going with CFLs, regardless of the wattage

IMHO CFLs are good for veg, that is all

Oh my Africian friend I beg to differ.......
In 2sq.ft. under 210 watts of CFL's
5 - 42Watt Bulbs
7.3Lbs per. 12 months



Nothing fancy just bare sockets and 42 watt bulbs





Note the flowers all the way to the soil line....proof of light penetration


The girlz below still have 4 weeks to go


This is an example of the girlz......82 grams each 21 grams dried......I harvest 3 per week all year round (57-66 Grams per week)




And its all done in a lil' Box in a hand built log cabin 28 miles from the closest power line

 

[threeeleven]

You tell 'em DrBudGreengenes! You're thread has inspired me to try a SOG in my CFL rubbermaid for my next grow!

 

[DrSmoke]

nice, man. k+

 

[wotamess]

hah!
-wam-