303
Well-Known Member
Well done sir.. I hope I can get that much from my grow!
1st grow 30 days in...CFL
- Thread starter itsgrowinglikeaweed
- Start date
Gastanker
Well-Known Member
Just went over the grow and am quite impressed. Bravo! Sucks about the budrot 
Just cut one of my plants and found the entire cola infected as well. Sucks but some pot is better than no pot 
I got 5.4oz off 6 plants under 388w CFL - I've been thinking of adding some T5s to the outside of my closet and you've definately persuaded me it's a must. Props again.
Just cut one of my plants and found the entire cola infected as well. Sucks but some pot is better than no pot I got 5.4oz off 6 plants under 388w CFL - I've been thinking of adding some T5s to the outside of my closet and you've definately persuaded me it's a must. Props again.
Flamingoman
Active Member
wow 2 hours went by fast just read the whole thing.... very nice set up. and very impressed with the whole CFL i didnt thing that you could flower with them i might lookin to the in the future thanks!.... good luck on you next build and make sure to give up the link....
happie growing and happie smoking...
happie growing and happie smoking...
dansameiro25
Member
people i am new to this site hopefuly ill know how to read this reply. here goes i need to start a new thread on T5 growing. i ahve a sun blaze 4 ft 4 bulb 50 somthing watts each. also there 2 6500k and 2 3500k. Got me so far! This is my 3rd grow. The t5 setup is new first time but i grew with cfl before and get really awsome yeilds and awsome quality. The t5 is nice bc i got way better reflector and im pushing less watts and more light 20.000 lumens. all around. so for awosme result better than my last 3 grows. no streching at all really compact cant complain at all. Today went in to the grow room and noticed that the tops where a lil burnt but also noticed there was some yellow on some plant on the leaves. what is this telling me i flushed allready gt better. not it comeing back. Now the first problem i think it was bc the lights where too close and the second problem was bc my soil has fierilizer in it for the month miricle grow soil iv used it all my grow work aswsome but i did somthing dofferent this time i added my firtilizer also half streanth but after the first time they went went yellow iv been useing just water. i only firtilize with my food once a week maybe. so what do u all think. think i should hold out completly on the food. i will pst pics soon on monday. i rased my t5 hood today. get back to me on this people. Im going to start a t5 thread soon. ok thnaks people
Cannbizzle
Member
Lumens are a measurement of how much light energy a light source emits. The problem is that this measurement is based around the wavelengths of the human eye, and NOT the PAR wavelengths. Using Lumens is great for measuring light used in flashlights or office buildings, but completely worthless when it comes to grow lights.(((((((((((((((CFLs are still fluorescents, despite being physically smaller than the traditional long tubes. Fluoros make low intensity light; the intensity drops dramatically only a few inches away from the lamp tube. This is generally OK for slow-veg of small plants. However, good bud development requires the high-intensity light you only get from HID lighting.
CFLs as such are not revolutionary nor in any way 'the next big thing.' They DO have some good applications with clones and early vegging, though. Even the big 100-300W CFLs as used in Envirolites and other fixtures, while brighter (more intense) than their small grocery-store cousins, still produce low-intensity light. These big CFLs will do better with flowering than the small ones but simply can't produce the same results as even a small HPS. A 150W HPS will kick the pants off a 150W CFL in flowering due to the difference in luminous intensity.
One point that even long-experienced growers miss is that lumens don't 'add.' Lumens are a measure of light intensity, which the human eye interprets as brightness. If you have a 1500 lumen CFL and you put another 1500 lumen CFL beside it, the total luminous output in the effective coverage area near your two CFLs is- wait for it- 1500 lumens. Just because you put one CFL next to another does not make either lamp any brighter or more intense.
Reduced: 64% of original size [ 800 x 601 ] - Click to view full image
For the above image, I set up two 20W CFLs in two fixtures, let them warm up for about 5 mins and measured the luminous output around them at a distance of 50mm. The lux meter read around 63-65K lux from the sides of either CFL by itself. When the lux meter sensor is placed so that it is as close as practicable to within 50mm of both tubes, the meter still reads 63-65K lux.
Luminous intensity from multiple sources acts like voltages in parallel. If you put two 1.5V batteries in parallel, you get 1.5V. Same with luminous intensity. As said previously, if you put two 1500 lumen lamps next to one another, you have... 1500 lumens. Neither lamp gets any brighter just because they are next to one another. Luminous intensity is not a measure of the volume or number of photons being thrown at a given point but rather the energy pushing them, analogous to voltage in an electrical circuit.
Consequently, you can put all the 1500 lumen CFLs you want in a grow but the luminous intensity will remain at 1500 lumens. If you need more intensity, you need a more intense (brighter) light, not more low-intensity lights.))))))))))))))
Here is an article from a different website.
Cannbizzle
Member
LUX is simply a measurement of how much light reaches a surface (Lumens/m^2), but again this measurement is based upon lumens which is totally irrelevant for our purposes. Legitimate PAR measurements are as follows: PAR watts per square meter, PPF PAR, and YPF PAR. These are, unfortunatly, very hard to measure correctly. Very few (if any) vendors will provide you with these numbers because they simply do not have a way of calculating them.