How many lights?

[HappyHippyDad]

Evening all...

I am struggling a little to design the lighting for this large shed.

The size of the shed is 12m x 6m and approx 5m high.

The owners want it to be very bright in there.

I have attached a scale drawing which shows x10 battens in 2 rows of 5.

The lights to be used are JCC ToughLED (1500mm, 49W, 4500 lumens), they will be suspended by chains.

I'm thinking perhaps my design is too much, perhaps 2 rows of 4 or maybe even 3? I have not used these fittings before so am finding it difficult to visualise. I have also contacted JCC who will be e-mailing me a design tomorrow but to be honest I find the ideas/thoughts on this site generally more useful than the manufacturers views.

Cheers guys.

 

[HappyHippyDad]

Are you giving them the option of just having say half the lights on if required, rather than all or nothing? Daz

I've already given them that option Daz and they prefer to have them all on one switch.

 

[HappyHippyDad]

An update!

JCC have got back to me with the following design. SURELY thats overkill? 15lights at 4500lm's each is 67500 lumens in total!!

View attachment Relux1.pdf

 

[Midwest]

An update!

JCC have got back to me with the following design. SURELY thats overkill? 15lights at 4500lm's each is 67500 lumens in total!!

View attachment 30068

Your customer said they wanted it bright, show what JCC said and let them decided Brightness is an arbitrary thing. Worse thing can happen (for you), is its not bright enough for them.

 

[Midwest]

Them fittings are pricey thought!

 

[Adam W]

Just downloaded... absolutely no idea what was going on!! Far too fancy for me Lee but thanks anyway



Its going to have some work benches around the side and also will have a large motorhome kept in it and also other vehicles, tractor etc.

Presumably the client 'wants it bright' so they can see what they're doing on the workbenches; you wouldn't need a lot of light to be able to see a motorhome, especially if it's a big one.
With that in mind I'd be tempted to concentrate the light on the workbenches, maybe lower them to about 2m above the centre of the workbench, then the vehicles will be adequately lit by whatever spills or reflects from the task lighting around the edge. Maybe add a couple of 'fill' battens in the centre at high level.
By the sound of it the client has something specific in mind, so it might be worth just blindly following their instructions, that way they can't complain at you if they don't like the end result.

 

[Richard Burns]

I note on the report they have the lights fixed to the ceiling and you said they would be chain suspended, this would make a difference.
However from the Lux levels they have shown on the calculation is does seem about right for precision work, though I would agree with Adam W on the light distribution.
You could probably omit the middle row of lights in that case.
But the customer is the one who can specify if they want, whether it is right or wrong it is what they asked for.

 

[sammyshooter]

How will you be installing it? Conduit? Just thinking if your budget would allow, set up a click rose system so you could start with a minimum of lights, show your client, then increase to their liking?

Just thought it might give you a bit more flexibility!

 

[baazab]

Pls take few pic when the work is done

 

[Swcfisher]

Have you thought about 2rows of 4 but use doubles instead of singles?