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Lighting Agricultural Building


Apache

Question

Guys

 

Looking at building a 13mX20m portal framed 'agricultural' building. Will be used for lambing sheep etc.

 

What would be the suggestion for lighting? I would want to be able to read a newspaper, but we are not looking for operating theatre quality lighting throughout!

 

Three phase is available

 

Need relatively instant light so sodium lighting is out.

 

There is a second larger shed with fluorescent tubes. Would it be worth swapping them over too?

 

Many thanks guys

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23 answers to this question

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MH ?

 

what colour light do you want?

proper white I'd think, ,,,,,,,

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LED !


MH have a warm up time

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LED seconded.

Almost all discharge lights have a warm up period, it's just shorter in some than others.

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Yer, didn't notice the wanting light before you switched it on bit,  :C   

LED then, or, those fancy new oil lamps, they are quite good too,  :D 

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LED flood type? Something better than that? LED fluorescent replacements?

 

How do you decide how many to buy - is there a calculator or do you buy 4, stick them up and see if it is bright enough?!

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I did a lambing shed around that size  but used 4 No.  Metal Halide  ( White light)  lowbay fittings .  They didn't ask for instant light there. 

 

Some of the LED  fittings used by guys at my wholesaler are having to be returned TBH .  Bloke put 30 ( I think) in an office  & had to replace 5 .  

 

Metal Halides would be up full in about 2 minutes I'd guess , is that no good ?

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The issue is midnight when we roll up to lamb a sheep and want to get on and get out. Also if going in to check on a patient quickly.

 

Some of these lights leave you in the dark for 5 minutes if you accidentally switch them off and want them back on.

 

That is no good.

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How about MH and a couple of LED "fluorescents" switched separately for instant light,? 

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You're right there Patche , switch them off & you have to wait for the lamp to cool berfore they're back on again .

 

What about what Stepps says ?

 

I'm not up to speed with LED fittings yet ,  don't know how good they are , how reliable they are TBH  . 

In an emergency I'd say  a couple of old fashioned , 400W  Tungsten Halogen floods TBH  .

 

I did a large warehouse where the staff entered via a door miles from the bank of light switches ...so a time delay switch put  four TH floods on for 5 mins while they walked through to the switches.

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I think Binky has done a load of low energy stuff. He puts it on his Facebook page.

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I would go LED and not mess about with any 'old' technologies. IP rated floods would be my starting point monted around where the roof meets the top of the walls. There are various on-line lux calculators, the name of which I immediately forget, that will help you decide lux level required. Might also be worth looking at 'natural daylight' to get full colour rendition if you think that would help with what you are doing. I also understand this may help keep you awake in the wee small hours - brain reaction etc etc


I think Binky has done a load of low energy stuff. He puts it on his Facebook page.

certainly have been, apart form the obvious energy savings, they should last 5 times longer, plus LED isn't over priced anymore.


found it!

http://www.relux.biz/index.php?option=com_content&view=article&id=216&Itemid=189〈=en

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Just yesterday I fitted two 6ft Philips LED strip lights in my workshop, they are mounted about 9ft from the floor. I am impressed with them, nice and bright, instant light and low energy.

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this sort of thing, but would look for 5 year warranty

 

http://www.lightingever.co.uk/150w-high-power-led-flood-lights-dw.html


other point to remember Apache, is the higher you mount the fittngs the lower the illumination at floor level, that is why you see a lot of florries in factories dangling on chains. Whils this a bit more work to install, being overhead tends to give better illumination whre you are working. But easy route is floods on walls, you can always add more if required, and do check the angle of illumination. Too wide a spread + weak light. You get no 'halo effect' from LED, ie basically shines forward only, which is where some of the energy savings come from.

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That is the sort of thing I was thinking. I have 2X20W LED floods and they really light up the garden.

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I have used 50w LEDs very impressed

I think they now make 80W as well

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At 20m, I'm guessing it's four bays? A 30w LED flood at eaves level at each side of each bay (I.e. 8 in total) will give you plenty of light. We normally wire them 25/75% on two switches so that you can have a lower level of light (a night light), enough light to have a look around without causing too much disturbance.

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one of these bad boys would do it, and most of field next door :slap

 

300w projection beam floodlight

 

post-490-0-60739800-1432159824_thumb.jpg

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Dare I ask how much ;)

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I don't actually know, we are fitting these for a lighting design company, but they are Philips and defo won't appeal to your Yorkshire tendencies :slap :slap :slap

 

Piccies on Facebook, I'll post some on here later. The Church Tower has been condemed for H&S purposes (by a wimp if you ask me) so the only way to illuminate the Steeple and top of tower is big light on the ground. Should attact a few UFOs and other insterstella craft.....

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what about candles :slap ill get my :coat

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Fork handles? :)

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apologies for my crap photography. But the 300w flood was used to illuminate the steeple due to H&S concerns, we were not allowed to put lights in sensible spot, like top of tower, so had to illuminate from ground level. Fortunately both piccies are equally crap, but will give you the general idea Before and after

 

post-490-0-67221600-1432219707_thumb.jpg

 

post-490-0-79813500-1432219632_thumb.jpg

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better picture of church  you can see how the 300W illuminates the tower and Steeple, rest of church is illuminted by 50W flood with a wide spread. Found these annoying as you get dazzled off to the side more than directly in front, which was a bit weird.

 

The church was left as a war memorial to the dead of Plymouth. Whilst adjusting the light sand old couple wander on-site, tourists.

"Was there a fire he asks, what happened to the church?".

"Luftwaffa" says I.

"We're German" he says.

"Your forgiven" says I. 

 

Spooky coincidence the first people to visit the newly illuminated church were German. At least they didn't arrive by plane this time :innocent

 

post-490-0-77764700-1432233489_thumb.jpg

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