Greetings. I'm getting into growing with 125W CFL lighting with plants close to the light, horizonal SOG either side of the bulb. - And the yield is ok for me. But that's another story. - I'd like to keep a small mother plant in a small cupboard so I can avoid keeping germinating seeds. The plan is to take (for a SOG) 8 cuttings from the mother every 6 weeks and put them straight in to the flowering chamber. So this would give me a small harvest every 6 weeks. So I just need a small mother which will start to look like a little Bonsai after a while. I'm wondering if I'll be able to do this without installing fans in the cupboard if I open the doors every day to change the air. The plant doesn't have to be great, just alive enough to give me 6-8 new seedlings every 6-7 weeks. These are the possible lights I have in mind: [ame=http://www.amazon.co.uk/Hydroponic-Grow-Light-Lumens-Circle/dp/B003NAP8FQ/ref=sr_1_3?ie=UTF8&qid=1306168863&sr=8-3]LED Hydroponic Grow Light 450 Lumens Red & Blue Crop Circle: Amazon.co.uk: Lighting[/ame] or [ame=http://www.amazon.co.uk/LED-Grow-Light-stimulate-maximum/dp/B003MUTRW2/ref=sr_1_2?ie=UTF8&qid=1306168863&sr=8-2]LED Grow Light - Red and blue to stimulate maximum: Amazon.co.uk: Electronics[/ame] The question is: Are they going to generate any significant heat ? Thanks.
I would be very skeptical of the led panels you have listed. If nothing else go look at the results from a completed grow journal using led's.
I'm not expecting anything more than them keeping the plants alive and growing a bit. - Just a few new little branches to make seedlings from - Nothing more. I've ordered one now so I'll update this thread when I've got the results. ( I ordered this one: [ame]http://www.amazon.co.uk/Hydroponic-Grow-Light-Lumens-Circle/dp/B003NAP8FQ/?tag=vig-21[/ame] )
Just wired up the light. It's only 8Watts but when I plugged it in my girlfriend gasped because it was pointing in her face. When I turned it round I realised why. That light is Bright with a capital B ! Let's see what happens with a cutting.
Well here we are 2 weeks later. Attached is a pic of the cutting. It looks very happy. I think I'll buy myself a little 11W CFL 2500k for growing cuttings though. The reason is simply that ventilation is necessary in any case so I think the small heat created by the CFL wont be a problem. The LED light is a mix of blue and red and really I only want the blue. - But the plant does seem happy growing under that light. There's a pic in this thread : http://forum.grasscity.com/cannabis-breeding/836544-inherited-something-else.html
That LED light was fine for getting the seedlings up into the light, but after a week or so the plant grew too tall and thin and now needs to be supported by a stick. So it seems the LED is really weak. I've moved the seedling to go under a 20W CFL now which is much brighter. The 8W LED is destined for the dustbin. It was too weak.