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Growing lights in the greenhouse
Hi
Can anyone tell me what lights/bulbs are used in the greehouse to extend the growing hours for seeds. I have done a 'Google' and there are a great many different bulbs out there, and they seem to be mainly for growing plants for 'your own personal use'!!! I would like to extend the growing hours for my veg seeds so they are well established possibly for showing this year, fingers crossed. TIA Anthony |
#2
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Growing lights in the greenhouse
In message , Chris Hogg
wrote On Tue, 15 Jan 2008 16:49:49 -0000, "Anthony" wrote: Hi Can anyone tell me what lights/bulbs are used in the greehouse to extend the growing hours for seeds. I have done a 'Google' and there are a great many different bulbs out there, and they seem to be mainly for growing plants for 'your own personal use'!!! I would like to extend the growing hours for my veg seeds so they are well established possibly for showing this year, fingers crossed. TIA Anthony You need powerful lights. Most domestic stuff isn't up to it. See http://www.twowests.co.uk/TwoWestsSi...W_GROLIGHT.htm Wouldn't it depend on the distance between the plant and the light.? In a commercial greenhouse you may use a powerful light to illuminate a large area. In a small greenhouse, and possible for a smaller area, couldn't a compromise be made with a lower power bulb placed closer to the plants? You can grow quite a lot of algae in a fish tank illuminated with only 40W of strip lights -- Alan news2006 {at} amac {dot} f2s {dot} com |
#3
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Growing lights in the greenhouse
Alan wrote:
In message , Chris Hogg wrote On Tue, 15 Jan 2008 16:49:49 -0000, "Anthony" wrote: Hi Can anyone tell me what lights/bulbs are used in the greehouse to extend the growing hours for seeds. I have done a 'Google' and there are a great many different bulbs out there, and they seem to be mainly for growing plants for 'your own personal use'!!! I would like to extend the growing hours for my veg seeds so they are well established possibly for showing this year, fingers crossed. TIA Anthony You need powerful lights. Most domestic stuff isn't up to it. See http://www.twowests.co.uk/TwoWestsSi...W_GROLIGHT.htm Wouldn't it depend on the distance between the plant and the light.? In a commercial greenhouse you may use a powerful light to illuminate a large area. In a small greenhouse, and possible for a smaller area, couldn't a compromise be made with a lower power bulb placed closer to the plants? You can grow quite a lot of algae in a fish tank illuminated with only 40W of strip lights Quite correct. If you wanted to cook seedlings, then a powerful lamp (250w) placed close to them will do it nicely. This Gro-lux lamp is the sort of thing you should be looking at: http://www.lightbulbs-direct.com/var...l.asp?var=3704 Even then, they will add heat to a closed propagator. I use a 25w Gro-lux and it pushes the temp up by around 10°C when placed directly on the propagator lid (I put aluminium foil above it to act as a reflector - but of course that just adds to the heating problem). Hopefully, in the next couple of years we will see LEDs become available which are more efficient than fluorescent lamps (eg see http://www.ultraleds.co.uk/cree-mr16...a2bd8d01c04ed2 for something not too far off). Whether they will have a suitable spectrum for plant growth is another matter. -- Jeff (cut "thetape" to reply) |
#4
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Growing lights in the greenhouse
In message , Jeff Layman
wrote Alan wrote: Quite correct. If you wanted to cook seedlings, then a powerful lamp (250w) placed close to them will do it nicely. This Gro-lux lamp is the sort of thing you should be looking at: http://www.lightbulbs-direct.com/var...l.asp?var=3704 Are these tubes any better than the daylight or tri-phosphor tubes sold elsewhere at a fifth of that price? http://www.tlc-direct.co.uk/Products...6DAYLIGHT.html http://www.tlc-direct.co.uk/Products/LAFLT18.html Referring back to my fish tank example, 40W of special expensive 'aquarium' tubes produce the same amount of algae as £4 of ordinary white tubes. -- Alan news2006 {at} amac {dot} f2s {dot} com |
#5
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Growing lights in the greenhouse
Alan wrote:
In message , Jeff Layman wrote Alan wrote: Quite correct. If you wanted to cook seedlings, then a powerful lamp (250w) placed close to them will do it nicely. This Gro-lux lamp is the sort of thing you should be looking at: http://www.lightbulbs-direct.com/var...l.asp?var=3704 Are these tubes any better than the daylight or tri-phosphor tubes sold elsewhere at a fifth of that price? http://www.tlc-direct.co.uk/Products...6DAYLIGHT.html http://www.tlc-direct.co.uk/Products/LAFLT18.html I doubt it. Probably a minor difference in spectrum, but nothing significant (except the price). Referring back to my fish tank example, 40W of special expensive 'aquarium' tubes produce the same amount of algae as £4 of ordinary white tubes. But are the algae any greener? ;-) -- Jeff (cut "thetape" to reply) |
#6
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#7
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Growing lights in the greenhouse
"Jeff Layman" wrote in message ... Alan wrote: In message , Jeff Layman wrote Alan wrote: Quite correct. If you wanted to cook seedlings, then a powerful lamp (250w) placed close to them will do it nicely. This Gro-lux lamp is the sort of thing you should be looking at: http://www.lightbulbs-direct.com/var...l.asp?var=3704 Are these tubes any better than the daylight or tri-phosphor tubes sold elsewhere at a fifth of that price? http://www.tlc-direct.co.uk/Products...6DAYLIGHT.html http://www.tlc-direct.co.uk/Products/LAFLT18.html I doubt it. Probably a minor difference in spectrum, but nothing significant (except the price). Referring back to my fish tank example, 40W of special expensive 'aquarium' tubes produce the same amount of algae as £4 of ordinary white tubes. But are the algae any greener? ;-) -- Jeff (cut "thetape" to reply) Thanks for everyones input, I know what I'm looking for now. Thanks again Anthony |
#8
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Growing lights in the greenhouse
Can anyone tell me what lights/bulbs are used in the greehouse to extend the growing hours for seeds. I have done a 'Google' and there are a great many different bulbs out there, and they seem to be mainly for growing plants for 'your own personal use'!!! I would like to extend the growing hours for my veg seeds so they are well established possibly for showing this year, fingers crossed. TIA Anthony There is a mystique about growing lights that should not be neccessary. Last year I researched the subject and made my own light box. I bought a beautiful Salvia leucantha from Sacha in the summer and took some cuttings at the end of October. I put the cuttings and other material in the light box, where they not only rooted and grew, but they are now in flower as well. Any light source will do, you do not need expensive designer bulbs. The most practical is fluorescent tubes. You do need a high light level - about 2000 lux compared with sitting room lights of 50 lux. To achieve this economically you must treat light in the same way as you treat heat. If you heat a room you enclose it and insulate it. If you put the heater on the patio you waste 95%. If you want a high level of light you must enclose it and use light insulation (ie reflective surfaces), if you don't you waste 95%. My own light box was made to take a growbag tray, and was completely enclosed with white reflective walls and ceiling. It only needed three3 foot fluorescent light to achieve the neccessary light level. A total of 90 watts costing about £5 per month to run 14 hours a day on a time switch. If anyone is interested, I wrote a short Word document with details, e-mail me at Peter L Sutton[at]Ntlworld{dot}com for a copy. |
#9
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One such investment can grow in the form of an LED light. With the expansion of your indoor garden, and its request for additional lighting. Only so much room next to the window, which is why growth lights need to rescue.
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How To Use Grow Lights |
#10
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[QUOTECan anyone tell me what lights/bulbs are used in the greehouse to extend
the growing hours for seeds. I have done a 'Google' and there are a great many different bulbs out there, and they seem to be mainly for growing plants for 'your own personal use'!!! I would like to extend the growing hours for my veg seeds so they are well established possibly for showing this year, fingers crossed. TIA Anthony[/quote] Has anyone tried contacting their local nick to find out how they dispose of the ones they seize during raids on cannabis factories? You might be able to pick up 2 or 3 cheap. |
#11
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Outside the greenhouse can be lifted and some extra sun. Small house like this is usually used to start the seeds. However, the plant is a natural small adults may be able to fit. Herbs such as parsley is an example of a small factory, can be included through regular pruning.
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