I found a great high~quality LED bulb today It has 800 Lumens from only 12.5 watts The one I bought lasts 25,000 hrs and has a temp of 2,700 Kelvin I just added it to my non~cannabis grow set~up I have in my house I think you lighting guys may want to use these. I'm very impressed. It looks odd but emits tons of light Here's their web-site. [another safe link] Hands on with Philips’ New Ambient LED Spotlight and here's a couple pics off the web of the one I got: Enjoy!!!
Here's my set~up!! Enjoy! +rep me, because these work!! ^^^^^bump! Also, BTW......... my set~up has a total of about 12,800 lumens. 6, T5 2,000 lumen 24" daylight tubes + the 800 lumen 2,700k LED. My lumens have, of course, dropped just a bit since I started growing with them
one seems to wonder...would it of been easier/cheaper just to buy a 150w hps light? or hell even metal halide with cmh bulb... each to their own i guess...
I don't think you see the light, here........... I don't have to ventilate at ALL because I know what I'm doing I'm smart like that
with regards to ventilation, I was under the impression ventilation was needed in order to replace the Co2 in the box so your plant will have fresh air to breath, also I have read a light breeze across your plants will strengthen them.
This is not a cannabis grow set-up ^^^^^^ Ventilation is mainly used to control excessive heat issues. The benefit of freshly circulated air is really a bonus. And if you know to keep the air~flow from ground to ceiling, it becomes a tool..... too. A 500watt set~up for cannabis, which will have to be light sealed, can create MAJOR, MAJOR f'ing heat issues. A 10x12 ft bedroom can reach 100 degrees if you don't address the issue effectively
Well the only thing that bothers me is that LED's only emit light in a small part of the spectrum, and that is really what is important to the plants is the correct amounts of each part of the spectrum it's getting. That is why the higher end LED grow lights have a combination of different red's and blue's and not white. Now this is not for a mj set-up, but it still begs the question, how much of the light that LED is emitting is really being used by your plant? CFL's are popular because of the pretty full spectrum they emit.
haha not to mention that plants need fresh at a minimum of every 15mins to allow the stomata to open and allow respiration to effectively occur, i mean its only responsible for an 80% increase in growth when you have it... but yeah, its mainly to remove heat if heats an issue, get a cooltube... running 2x600w in an area roughly 7ftx4ft with no temp problems. sorry but that white light led is a waste of time for our purposes... the wavelength emitted is not efficient at all... better of with a 150w envirolight, much better. peace!
^^^^^ This is very true. Usually LED's emit lower freq's. I use the 27ook LED here only as supplemental lighting to my Fluoro set~up My LED is 27ooK and the 6 fluoro tubes are all dylight temps like 64ooK & 65ooK For the 12.5 watts I'm getting 800 lumens. That really great for an LED :