The Orchid Forum, for the UK and Europe (previously known as The UK Orchid Forum) • View topic - Growlights
It is currently Sat Feb 24, 2018 11:05 pm


All times are UTC [ DST ]




Post new topic Reply to topic  [ 15 posts ] 
Author Message
 Post subject: Growlights
PostPosted: Thu Nov 01, 2012 3:40 pm 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
Im growing a lot of my Orchids (mostly Odont alliance and Cattleya) under lights for the winter. I know they respond well, but im sure theres a better and cheaper method than using the 4x CFL bulbs i have at the moment. Has anyone experimented with LED bulbs? I tried googling but i just keep finding Marijuana forums and that's not what i'm trying to do.

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Thu Nov 01, 2012 7:28 pm 
Offline
Global Moderator
Global Moderator
User avatar

Joined: Thu Jan 01, 2009 10:35 pm
Posts: 344
Likes: 108 posts
Liked in: 79 posts
Images: 11
I live in: United Kingdom (England)
My nearest city or region is: Nottingham
My hardiness zone is: 8b -6.7to-9.4
Telipogon wrote:
Im growing a lot of my Orchids (mostly Odont alliance and Cattleya) under lights for the winter. I know they respond well, but im sure theres a better and cheaper method than using the 4x CFL bulbs i have at the moment. Has anyone experimented with LED bulbs? I tried googling but i just keep finding Marijuana forums and that's not what i'm trying to do.



I cannot really answer your question but you can buy cool white LED replacement tubes, going by the spec of these LED tubes I think they should work well ! Obviously a lot more expensive the CFL.
http://www.ebay.co.uk/sch/ledtronic/m.h ... 7675.l2562

_________________
Regards Keith
3rd April 2004 - UK Orchid Forum joined date.
http://www.orchidsupplies.co.ukClearPots-NeoPots-OctBaskets-RainMix-Moss-PottingMixes-SeedlingMix
http://www.koolorchids.co.uk Orchid Growing Info
Join my FaceBook group The Orchid & Gardening Forum https://www.facebook.com/groups/633055240086601/
View then Like our business Facebook page! https://www.facebook.com/orchidsuppliesuk


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Thu Nov 01, 2012 7:32 pm 
Offline
Global Moderator
Global Moderator
User avatar

Joined: Thu Jan 01, 2009 10:35 pm
Posts: 344
Likes: 108 posts
Liked in: 79 posts
Images: 11
I live in: United Kingdom (England)
My nearest city or region is: Nottingham
My hardiness zone is: 8b -6.7to-9.4
Oh, I forgot to add, don't the CFL tubes produce a little heat so almost double as a heat source. Mine are under my stairs for my flasks and they raise the temp by 5 c when on so this is very handy for me. LED'S would probably completely stop that heat gain, I could be wrong though and am basing it on what I think will happen not based with experience using LED.

Don't know whats up with my eyes tonight! :crazy: I am a editing freak :lol:

_________________
Regards Keith
3rd April 2004 - UK Orchid Forum joined date.
http://www.orchidsupplies.co.ukClearPots-NeoPots-OctBaskets-RainMix-Moss-PottingMixes-SeedlingMix
http://www.koolorchids.co.uk Orchid Growing Info
Join my FaceBook group The Orchid & Gardening Forum https://www.facebook.com/groups/633055240086601/
View then Like our business Facebook page! https://www.facebook.com/orchidsuppliesuk


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Thu Nov 01, 2012 11:44 pm 
Offline
Still settling in
Still settling in

Joined: Sun Mar 27, 2011 8:32 pm
Posts: 17
Likes: 4 posts
Liked in: 1 post
I use LEDS. Last winter was my first time using them and I had one of my catts flower. I bought my LED lights though. There's no heat to speak of coming from mine and the bulbs are well ventilated. here's a couple of links to have a look at.

http://www.quantumledbloom.co.uk/servle ... UFO/Detail

http://growlightuk.com/

http://www.progrow.co.uk/acatalog/fluor ... lamps.html

http://www.easygrowled.com/OnlineShop.aspx

_________________
K


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Fri Nov 02, 2012 9:41 am 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
Thanks for your replies and the links.

Masdyman, yes they do produce some heat, but since the plants are indoors, I don't really need the extra. Also, this means that plants need to be further away from the bulbs so they don't burn.

Kelo, very interesting links, the bulbs seem rather expensive, do you find they are better than cheaper kinds of bulbs ?

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Fri Nov 02, 2012 9:57 am 
Offline
Still settling in
Still settling in

Joined: Sun Mar 27, 2011 8:32 pm
Posts: 17
Likes: 4 posts
Liked in: 1 post
With cheap bulbs it's simple; they don't work properly, if at all. Remember another point when selecting your bulbs that red and blue refer to the wavelength and not the colour of the bulbs - you can't see the red or blue wavelengths. Cheap LED systems have red and blue coloured lights that confuse people, they may allow you to see your plants natural colour but that's as far as it goes. The CFL bulbs are good but I have never used them and as I understand it they have either to be placed in between plants or overhead using a reflector.

_________________
K


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Fri Nov 02, 2012 11:51 am 
Offline
I think I like it here
I think I like it here
User avatar

Joined: Fri Aug 19, 2011 5:37 pm
Posts: 60
Likes: 35 posts
Liked in: 26 posts
Images: 2
I live in: United Kingdom (England)
My nearest city or region is: London
I use a daylight bulb. It is cheap and produces about 6500k. I get heat from it as well which is good for me as I have no heating in the room that I need the extra light in. Since my three high light loving orchid have been under it one catt has finally -for the first time in a year- produced a sheaf and my high light loving Den spectabile has just started to swell it's nodes so any day now I should have a spike on it. They cost about £4.00 a year to run for about 12 hours a day and they are 40w.

http://www.consumablestore.co.uk/100w-es-gls-daylight-p-3902.html?gclid=CM-7hbOOsLMCFaTMtAodSBMARw


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Fri Nov 02, 2012 12:47 pm 
Offline
Still settling in
Still settling in

Joined: Sun Mar 27, 2011 8:32 pm
Posts: 17
Likes: 4 posts
Liked in: 1 post
For small areas they may be OK but that's about it.

_________________
K


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Sat Nov 03, 2012 9:10 am 
Offline
Still settling in
Still settling in

Joined: Thu May 24, 2012 9:16 pm
Posts: 21
Likes: 0 post
Liked in: 5 posts
I live in: United Kingdom (Scotland)
My nearest city or region is: Edinburgh
Hi Teli,

I've been growing with CFL's for a good few years, and they increase my orchidarium temp by about 10 degrees (ok in winter, not great in summer!), so have been looking into LED lighting as a replacement. I agree with Kelo that those cheap red and blue boards of LEDs are a waste of money. I have been thinking about trying these:
http://item.mobileweb.ebay.co.uk/viewit ... cmd=VIDESC
Obviously the higher the wattage and therefore lumens the better. The ones with 1600 lumen output are the ones that I am pondering - although I'm a bit dubious about heat output. Does anyone have any thoughts on the matter? Or will I experiment and report back? :lol:


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Sat Nov 03, 2012 9:29 am 
Offline
Still settling in
Still settling in

Joined: Sun Mar 27, 2011 8:32 pm
Posts: 17
Likes: 4 posts
Liked in: 1 post
I'm not sure if those would work or not. They would certainly put out light over a wider area. My UFO LEDS produce negligible heat have an excellent interior fan.

_________________
K


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Sat Nov 03, 2012 9:44 am 
Offline
Still settling in
Still settling in

Joined: Thu May 24, 2012 9:16 pm
Posts: 21
Likes: 0 post
Liked in: 5 posts
I live in: United Kingdom (Scotland)
My nearest city or region is: Edinburgh
The problem is that as my orchidarium is enclosed, the fans would simply exhaust the heat back into the enclosure. Hence my pondering! My fixtures are E27, the light output is in the right colour spectrum, the number of lumens isn't too bad - I think I'll get one and see how it compares to my CFLs. Even if the temp is a few degrees cooler, I know my Masdevallias would thank me, and my bills would hopefully be a bit cheaper.


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Sun Nov 04, 2012 1:46 pm 
Offline
Global Moderator
Global Moderator
User avatar

Joined: Thu Jan 01, 2009 10:35 pm
Posts: 344
Likes: 108 posts
Liked in: 79 posts
Images: 11
I live in: United Kingdom (England)
My nearest city or region is: Nottingham
My hardiness zone is: 8b -6.7to-9.4
Kelo wrote:
I use LEDS. Last winter was my first time using them and I had one of my catts flower. I bought my LED lights though. There's no heat to speak of coming from mine and the bulbs are well ventilated. here's a couple of links to have a look at.

http://www.quantumledbloom.co.uk/servle ... UFO/Detail

http://growlightuk.com/

http://www.progrow.co.uk/acatalog/fluor ... lamps.html

http://www.easygrowled.com/OnlineShop.aspx


Am I missing something?

I have just looked at one of the LED products a 300W LED Grow Light at an eye watering price of £560!
Here are the benefits that they claim
600Q LED Grow Light – Even More reasons to buy :

100% of light emission is absorbed and converted directly into photosynthesising and enhancing your plants
Energy costs reduced by up to 80% directly reducing your cost of growing
No heat produced
Less drying out of soil and does not cause damage to young seedlings.
Not only is your Plant yield increased, but you have healthier plants
Plant flavour is dramatically increased.And there’s more..

Remember

You also save on the wattage usage
You save on cooling costs and
You also save on bulb replacement costs
Plus it is environment-friendly, staying true to the original ethos of growers, no harmful substance like HPS & MH are released into the environment and there is no hazardous waste to dispose.

I get benefits from the very thing they are claiming are negatives :lol: The 2 ft square panel I have consists of 4 x 18w cft's total only 72w compared to their 300w! so how there is a 80% saving to be made I don't know.
I use the added heat gain from CFT to increase my grow area temperature, the heat gain is not that much that I need to cool!
Enviro- friendly - not enough to spend that amount.

The only benefit that I can see in my instance is LED gives 100% light emission which is fantastic but at an incredible cost.
I don't see how these LED panels are a viable option, maybe the LED tubes that can replace CFT without the need to replace fixings /fixtures are, I am very interested in these. I am surprised no one has picked up on them.

_________________
Regards Keith
3rd April 2004 - UK Orchid Forum joined date.
http://www.orchidsupplies.co.ukClearPots-NeoPots-OctBaskets-RainMix-Moss-PottingMixes-SeedlingMix
http://www.koolorchids.co.uk Orchid Growing Info
Join my FaceBook group The Orchid & Gardening Forum https://www.facebook.com/groups/633055240086601/
View then Like our business Facebook page! https://www.facebook.com/orchidsuppliesuk


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Mon Feb 22, 2016 7:38 pm 
Offline
Spending more time here than healthy
Spending more time here than healthy
User avatar

Joined: Wed Oct 28, 2015 5:14 pm
Posts: 206
Likes: 285 posts
Liked in: 89 posts
Images: 13
Location: Firdale park, Northwich.
I live in: United Kingdom (England)
My nearest city or region is: Vale Royal
My hardiness zone is: 8b
You could checkout a company called Brackenheath they sell LED lights used in retail/ commercial lighting 6500K daylight and the prices are not that bad. one positive about LEDs is they will tolerate being switched on and off (timers) whereas CFLs hate this and there longevity is reduced.
Barnie.

_________________
Barnie
Horticulture --- The Quest To Put Roots On A Pencil.


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Tue Feb 23, 2016 12:45 am 
Offline
Still settling in
Still settling in
User avatar

Joined: Fri Feb 19, 2016 12:00 am
Posts: 15
Likes: 0 post
Liked in: 2 posts
I live in: Spain • España
My nearest city or region is: Barcelona
This is my first year growing indoors with LEDs and I have to say that I'm pretty happy with the results.
This is the one I bought, with shipping, came to about €175.

http://www.growlights.co.uk/100w-cob-le ... y-prakasar

100w Full Spectrum - COB LED Grow Lights Panel by PRAKASA®

Made using the latest 3w LED Lights Bridgelux and Epistar leds and comparable to 200w HPS/HID lamps or similar CFL (for guidance). Suited for all stages of plant growth from seedlings right through to flowering and fruiting, whether using hydroponics or soil.

Each COB module configured with the spectrum and lens angle required for optimum plant growth.

Very easy to use - Simply plug and grow. Comes with standard detachable UK 3 pin power lead. Exceptional cooling with each module cooled by a dedicated fan mounted on a heatsink helps to extend the life of the led grow light. PRAKASA® led grow lights emit a little amount of heat but you are able to touch without getting burnt.

We recommend you maintain a distance of around 30cm between the lights and your plants to achieve optimum growth.

Save 50% to 90% in energy consumption compared to incandescent bulbs or fluorescent tubes. Wide angle projection insures uniform leaf coverage.

Brand: PRAKASA®
LED Configuration: 64 x 3w COB LED lights
Power consumption: 80w-100w
Lumens: ≥18,000 Lm @ 1m
Expected Lifespan: Upto 20,000 Hours

Wavelength (Each COB Module): Deep Red: 660nm, 28 leds
Orange: 640nm, 16 leds
Violet: 440nm, 8 leds
Blue: 460nm, 4 leds
Light Blue: 470nm, 4 leds
Green: 525nm, 2 leds
Hyper Red: 730nm, 2 leds

Suggested Lighting Area: 0.5 - 1 m2
Dimensions: 18cm x 18cm x 9cm
Power Plug: Factory fitted detachable UK 3 pin power lead (IEC)
Hanging Kit: Complete hanging kit supplied
Input voltage: AC85~264V
Input current: ≤0.5-1A
Work frequency: 50/60 Hz
Working environment: -20~40 degrees c


Top
 Profile  
 
 Post subject: Re: Growlights
PostPosted: Tue Feb 23, 2016 4:27 pm 
Offline
Global Moderator and Lord of the Rings
Global Moderator and Lord of the Rings
User avatar

Joined: Tue Dec 30, 2008 11:37 pm
Posts: 202
Likes: 140 posts
Liked in: 38 posts
I live in: United Kingdom (England)
My nearest city or region is: Birmingham
that is interesting, thank you for the link.

_________________
Now blogging on my Orchid collection (among other things!)

http://www.kevsorchids.blogspot.co.uk


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 15 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group