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60x40 16' tall

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encantofred

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i have a 65x70 shop with 20 ft ceiling. i have 21 6 Bulb T5HO fixtures in it. and they have a mirror finish reflector.

for me, with half my space, 6 of them would not have been enough. but i like it bright.

tom
 

Platonic Solid

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Too much light at each location and not near enough to provide even illumination. If you're just using it for storage, then it's fine. However for automotive/machine shop/body work type shop - based on similar layouts I've done, I'd say you need about 88 F54T5 bulbs spread out as much as possible.

Both of these layouts have 16 ft walls. I list them as 18 ft to average out the 16 ft wall and 20+ft peak:
50' x 60' x18'
50' x 80' x 18'
 

bloomingtonmike

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I have 8 in the center of mine and it is bright as the sun in the center - two rows of four in a 40x64x16 - mine are mirrored reflector howards from the jacksonville il guy on ebay. I have metal halides on the edges of the shop, 16 of those and the 8 in the center are brighter. Ill be swapping out the halides for 8 more t5ho.
 
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MeNeedGarage

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Too much light at each location and not near enough to provide even illumination. If you're just using it for storage, then it's fine. However for automotive/machine shop/body work type shop - based on similar layouts I've done, I'd say you need about 88 F54T5 bulbs spread out as much as possible.

Both of these layouts have 16 ft walls. I list them as 18 ft to average out the 16 ft wall and 20+ft peak:
50' x 60' x18'
50' x 80' x 18'

Did you really mean to say "88"?
 

Rotaris

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I have 11, 6 bulb, T5HO with reflectors. In my 40x60 with Bright white, metal. I only use half of them most of the time. I think it depends a lot on what is covering the inside of building?

So 66 bulbs total for me. People tell me " what.... are you working two feet from the sun in here"...;)
 
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MeNeedGarage

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Too much light at each location and not near enough to provide even illumination. If you're just using it for storage, then it's fine. However for automotive/machine shop/body work type shop - based on similar layouts I've done, I'd say you need about 88 F54T5 bulbs spread out as much as possible.

Both of these layouts have 16 ft walls. I list them as 18 ft to average out the 16 ft wall and 20+ft peak:
50' x 60' x18'
50' x 80' x 18'

I'm spinning right now. Can you recommend a fixture? When you say f54t5 are they all the same? I don't mind spending a little extra where it makes sense.
 
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MeNeedGarage

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barnjunkie

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I don't think that will be enough lights for woodworking and such..If cost is a factor, just pre-wire the jboxes for 12 lights and install your six for now. Then later on when you get enough money to get the other six, it will be an easy addition.

It is much easier to put up additional lights if you already have the electrical set up to do so. I just don't think you will be happy with six.

I have a 60x40x14 with 12 4-bulb t5ho fixtures and I personally would not want any less for the space.
 

Platonic Solid

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I'm spinning right now. Can you recommend a fixture? When you say f54t5 are they all the same? I don't mind spending a little extra where it makes sense.
For shadow free fixture placement, assuming your purlin locations are similar, use "Y" dimension locations from the 40x60x14 #41 & #42 pattern except continue the fixtures above the interior room. That layout has 12' walls and uses custom built T8 fixtures. You'll want to substitute F54T5HO. Yes, F54T5 is the same as F54T5HO.

Place three 4ft (actually 46" long) end to end, centered between each support in the "X" direction. So that's 3 fixtures x 4 spaces = 12 fixtures lengthwise. 12 fixtures x 4 rows = 48 fixtures total.
2 lamps per fixture = 96 Lamps.

Suggested Fixtures and Lamps:

Qty. 48 Lithonia ZR 2 54T5HO MVOLT 1/4 GEB10PS - $43 ea. @ HD.

You'll have to do your own research to determine ballast quality, plus you could use 1 tandem + 1 regular fixture mounted end to end. Here are the other contenders available at HD (obviously there are lots of alternate brands and places to get them):

TZ 2 54T5HO MVOLT 1/4 GEB10PS

TZR 2 54T5HO MVOLT 1/4 GEB10PS

Z 2 54T5HO MVOLT GEB10PS

Qty. 96 Sylvania 20949 F54T5HO 5000K $4.68 ea.
The 30,000 hr. life on the site is wrong. The most current Sylvania spec sheet (linked) says 40-45,000 hrs.
 

cybrdyke

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What about going with 6 of these?

http://www.grainger.com/product/LUMAPRO-LED-High-Bay-30UH79?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/30UH79_AS01?$smthumb$

Lumapro is the "house brand" of Grainger, meaning that you have no idea who actually manufactures it and to what standard. Run away. And are they really over $500 each??
It sounds like you're thinking in the direction of LED now. If so, great. Have a look at LED fixtures from Lithonia (Acuity), Metalux (cooper) or Philips.
If not, you can get a similar fixture to what you had in your first post, except with only 4 lamps. This means you would need a few more fixtures, but they'd be more spread out. This will help eliminate shadows.
CD
 
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MeNeedGarage

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I know I've been all over the map, but I have a hard time making decisions sometimes. This is probably the last time I'll ever do this, and I want to do it right. I'm sure if I did any one of the solutions above they would work. Now that I'm LED, what ideas can be shared on this.

Allen

Thank you.
 
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MeNeedGarage

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Platonic Solid, any opinion or ideas on using something like this: http://www.grainger.com/product/ACUITY-LITHONIA-LED-Striplight-36UX12?s_pp=false&picUrl=//static.grainger.com/rp/s/is/image/Grainger/36UX12_AS01?$smthumb$
 
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Platonic Solid

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I strongly object to any LED fixture that makes no effort to diffuse the sharp point light source of LEDs. Very uncomfortable lighting. The Lithonia ZL you linked to has bare LED boards! It doesn't get any worse than that. Go with the CREE LS series if you're willing to spend cash on LED fixtures.
 

Joe G.

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Platonic Solid

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Acuity makes many versions... Including many with a lens.

http://www.lithonia.com/commercial/zl.html#.VbFyQEr3arU
Good point, just not the one the OP linked to. Now that you've got me looking at it, you can get the 4ft lensed version much cheaper at beeslighting for $166.
5226lm / $166 = 31lm per $1.

The 8ft CREE LS8-80L-50K is available at earthled for $239.
8000lm / $239 = 33lm per $1

Let's throw the 8ft $70 4 lamp F54T5 Fluorescent TZR 2 54T5HO MVOLT 1/4 GEB10PS + $19 for 4 lamps previously linked into this mix.
17800lm / $89 = 200lm per $1

This is a no brainer IMHO.
 
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cybrdyke

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I'm considering starting with 12 LS8-80L-50K-10V . My shop has 3 bays, I'll put 4 per bay, 2 on each side.

Consider how many hours you intend to have the lights "ON" per year. After about 8000 hours of burning the LEDs, you will have saved about $150 (per fixture) over the cost of running the T5HO's. This is the difference in purchase cost between the LED fixture and the T5HO fixture. In other words, after 8000 hours, your total cost is Even Steven.
How much time will you spend in your space each day? How long until you get to 8000 hours?
Just food for thought.
 

Platonic Solid

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Both the Lithonia and CREE fixtures are intended as LED replacements for F32T8 fixtures, not F54T5HO fixtures. 12 8ft LED CREE fixtures will yield 33fc on 30" workplane. This is nice mood lighting for a man cave or basic storage, but severely underlit for any type of work.

If we aim for 85fc at 30" workplane you would need:

Qty.48 Lithonia 4ft LED fixtures = 3456Watts @ a poor 73L/W (Lumens per Watt).
Total Fixture Cost = ~$8000
or
Qty.36 CREE 8ft LED fixtures = 3168W @ 91L/W.
Total Fixture Cost = ~$8600
or
Qty.15 Lithonia 8ft F54T5 fixtures = 3615W @ 85L/W
Total Fixture Cost = ~$1300

It will actually cost you more to run the Lithonia LED fixtures than the F54T5HO and the small 6L/W difference between the CREE and the F54T5HO will never pay for the $7300 cost difference.
 

Platonic Solid

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Get 16 of them so you can do 4 rows of 4 or better yet follow my original instructions in post #10 for superior results.
 
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MeNeedGarage

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My plan is to get 24 of the 4 light units. I've already been to one homedepot. I got 9 there. I'll go get more after lunch.

Check this out. I'm sure everybody knows this but me. This is a picture of two ballasts in my Lithonia lights. Is this normal, and if so, why not buy phillips and sylvania?


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MeNeedGarage

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t5 assembly line.

When assembling the lights I notice that the center connector, where all four lights connect, that some of the wire colors were the opposite from the majority. I hope that makes sense. I twisted them around so all the colors were the same. I did this so all the brown and red wires, are in the same location on all lights. I also moved the ground screw in case I want to use it, it is installed under the center connector blocking access after assembly. I moved it over to one of the open screw holes. Does this sound like what others were up against.

I found a few end caps to be missing. I may go back to HD and see if they will let me remove a couple, or if they want me to bring back the light. Maybe I should drop it and not worry about?



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MeNeedGarage

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I was planning on mounting the lights right to the purlins. Is it better to hang the lights all at the same level ?

These lights have no reflectors, is that something that should be added? Kind of a late thought.
 

cybrdyke

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It's usually better to have all the luminaires on the same plane. You have plenty of them, so mounting them on purlins would be fine. From that height, you dont need to worry about reflectors. It's going to look good...
CD
 

Platonic Solid

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I was planning on mounting the lights right to the purlins. Is it better to hang the lights all at the same level ?

These lights have no reflectors, is that something that should be added? Kind of a late thought.
Geez, one would think that you'd actually learned something from all the layouts I've done so far. :lol_hitti

(mount to purlins - don't use reflectors)
 
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MeNeedGarage

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I've been looking all over for instructions on how to run these in tandem? I guess adding a light to the wire diagram on the box will work, but I'd like to see it on paper. What are the orange plugs on the ballest for? Can those be used for tandem use? If so, is where can I order a kit to connect two lights?
 

cybrdyke

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What are the orange plugs on the ballest for?
They are disconnect plugs. The black and white white wires from your supply line plug into one side and the black and white from the ballast plugs into the other. They allow you to disconnect each fixture individually, so that if you need to work on one fixture, you can leave all the others on. Pretty cool idea if you ask me...and they are required now.
 
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