MaxLite High Bay CFL Fixture ???'s

[nsula_country]

Hello!

I am in progress of building my new 70'x60' shop. 17' eave, about 22' peak (3/12).

I have been researching lighting options. I believe I have up with a cost effective, minimal labor intensive option. I would like some opinions.

200 watt, 8U CFL in a 16" high bay, non-ballasted fixture.

200 watt 8U Mogul Base 12000 Lumen Bulb $54
https://www.1000bulbs.com/product/8375/FC200-35871.html

Clear Acrylic 16" fixture $46
https://www.1000bulbs.com/product/8379/FIX-11225.html

Cone Lense for Clear Acrylic Fixture (optional) $16
https://www.1000bulbs.com/product/54001/FIX-11232.html

Spun Aluminum 16" fixture $35
https://www.1000bulbs.com/product/54002/FIX-70039.html

I have made up my mind, I am using these. Cost per lumen, ease of installation, and minimal fixtures required make sense. I plan on using 6 fixtures inside the 40'x60' shop and 3 fixtures under the 30'x60' lean to.

Acrylic = $.008/per Lumen (12000 Lumen bulb)
Spun = $.007/per Lumen (12000 Lumen bulb)

The question is... ... ... Acrylic or Spun Aluminum? Do I need maximum downlight or will the diffused light from the clear reflector be more even?

The walls and ceiling of the main shop are white. I am also going to epoxy the floor tan. If I don't get the FC's I'm expecting, I'll install more lights.

The lean to is not insulated, but the underside of the metal roof is white. One wall is barn red, three walls are open. This is more general lighting, not looking for a lot of FC here, just light.

I would like some comments, opinions, ridicule on the topic!

CT

 

[cybrdyke]

I would ask myself, in a world where everything that's new and improved in the lighting industry is moving to LED, why have I chosen to use a technology that is being abandoned, in my brand new, expensive building?
That's not to say that other light sources dont have their merits. But the one source that no one ever really liked is CFL.
Check the life rating. 10,000 hours. Per their literature, that's a median rating, meaning that at 10,000 hours, 50% of them are dead. Life on LED fixtures is routinely above 50,000 hours and that's a 70% life rating, with zero deaths. And it will use only about 100 watts.
To answer your other question, the aluminum will reflect all the light straight down into pools of light on the floor, eliminating the reflectances of your white walls, while the acrylic will allow light out sideways and up, which will soften shadows and reduce cave effect.
PS...12,000 lumens in not equivalent to 400w Metal Halide.
My 2 cents. YMMV.
Good luck
CD

 

[pgilmore7]

I've decided to go with these in my shop. I have a 30x60x17 and after a lot of back and fourth I've come to the conclusion more cost up front is worth the saving in the long run. I might have to get just a few at a time, because they are not cheap but oh well.


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[nsula_country]

I've decided to go with these in my shop. I have a 30x60x17 and after a lot of back and fourth I've come to the conclusion more cost up front is worth the saving in the long run. I might have to get just a few at a time, because they are not cheap but oh well.


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How many did you install?

What height did you install at?

CT

 

[nsula_country]

pgilmore7,

Was looking at some like the one you posted. They are all over Ebay and Amazon. I was just questioning the reliability of the imported lights. Though the Asians have seemed to master making cheap LED products. $225 for a 150w LED is a very good price!

I saw a build thread recently where they used these... He had them spaced closer than I would, but Good God was it bright! He had like 80-90 FC.

Lithonia IBH 12L MVOLT

1000 Bulbs
https://www.1000bulbs.com/product/153940/LITH-0083.html

Bees Lighting
http://www.beeslighting.com/product-p/ibh-12l-mvolt.htm


Its name brand, claimed 100k hr life, 14k lumen output, 0-10v dimmable if required... I believe they rate it as a 250w MH replacement. I am strongly thinking about these at least in the man shop. I think 6 would do well in a 40x60 mounted at red iron height.

CT

 

[nsula_country]

I would ask myself, in a world where everything that's new and improved in the lighting industry is moving to LED, why have I chosen to use a technology that is being abandoned, in my brand new, expensive building?
That's not to say that other light sources dont have their merits. But the one source that no one ever really liked is CFL.
Check the life rating. 10,000 hours. Per their literature, that's a median rating, meaning that at 10,000 hours, 50% of them are dead. Life on LED fixtures is routinely above 50,000 hours and that's a 70% life rating, with zero deaths. And it will use only about 100 watts.
To answer your other question, the aluminum will reflect all the light straight down into pools of light on the floor, eliminating the reflectances of your white walls, while the acrylic will allow light out sideways and up, which will soften shadows and reduce cave effect.
PS...12,000 lumens in not equivalent to 400w Metal Halide.
My 2 cents. YMMV.
Good luck
CD

cybrdyke,

Thank you for your comments.

I did not think that CFL were being abandoned? I was under the impression the newer low Hg fluorescents were green and here to stay.

LED is here and prices are dropping while the product gets better. But its not to a price point that makes it for the masses. This is consumer light bulb to high bay lighting. Its still at least 2x more than fluorescent.

The spun vs acrylic topic... You confirmed what I thought. With the white walls, the acrylic would diffuse the light all over versus throwing it straight down and no uplight.

As for MH replacement. The 200w CFL falls in closer to a 250w MH than a 400w MH. I was not expecting 400w worth of light. Also HID seems to "burn" through better than fluorescent to illuminate shadowy areas better. Does LED do the same?

CT

 

[pgilmore7]

I haven't got any yet but I will be getting them in a few weeks. The shade on the bottom is sold separately for $30 and comes in the metal finish or clear.


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[nsula_country]

I stumbled around on Google and found induction lighting and got excited. They are in the price range of MH, but last 50k hours or more while using 1/2 the watts. 100 year old technology. Don't know why I haven't heard of it before. Started laying out the fixtures then adding up the costs... Not any cheaper than LED high bays or MH or 200w CFL's

I am going with 8' T8 tandem fixtures (4, 4' tubes). Probably 32 watt, 800 series, 5000k... If I go with 12 fixtures (48 tubes) we will start at 144,000 lumens... In the most cost effective way both in materials and energy useage. May use more, may fill in some spots with 4' T8 strips.

CT

 

[cybrdyke]

I did not think that CFL were being abandoned? I was under the impression the newer low Hg fluorescents were green and here to stay.

Poor choice of words on my part. What I mean is that zero dollars of R&D budget is going to develop new CFL technology. It's all being spent on LED. CFL's will continue to be around.

As for MH replacement. The 200w CFL falls in closer to a 250w MH than a 400w MH. I was not expecting 400w worth of light. Also HID seems to "burn" through better than fluorescent to illuminate shadowy areas better. Does LED do the same?

Lumens are lumens. They all travel the same, but I know what you are trying to say. LEDs are extremely glarey, unless mitigated somehow. Their ability to fill spaces is completely dependent on optics. This is one of the reasons that I dont like using off-brands.

I stumbled around on Google and found induction lighting and got excited. They are in the price range of MH, but last 50k hours or more while using 1/2 the watts. 100 year old technology. Don't know why I haven't heard of it before.

You probably haven't heard of it because its rarely used. If I mis-used the word abandoned before, it would be an appropriate word to use here. Induction can be found in parking garages and in parking lots. Most of the large manufacturers have sold off or closed their induction departments. No future in it.

I am going with 8' T8 tandem fixtures (4, 4' tubes). Probably 32 watt, 800 series, 5000k... If I go with 12 fixtures (48 tubes) we will start at 144,000 lumens... In the most cost effective way both in materials and energy useage. May use more, may fill in some spots with 4' T8 strips.
CT

Probably the best bang for buck, but LED is realllllly close.
Good luck
CD

 

[nsula_country]

Probably the best bang for buck, but LED is realllllly close.
Good luck
CD

I am playing around with pricing. Loaded T8 fixtures and bulbs vs LED Ready non shunted fixtures and LED tubes.

A 4' LED Ready is about $13. Tubes are about $13 for 18w. So about $40 for a 4' two bulb fixture.

For about $50 we can hang an 8' tandem with 4 tubes.

The other issue I have with LED is an 18w tube is 2000 lumen. 22w is 2200 lumen. A 32 watt (I know, higher wattage) is 3000 lumen... I don't see how 2/3 the lumens "equate" to "equal" lighting. They claim an 18w LED is a 1 to 1 replacement for a T8, 32w. Unless it's because the LED's are more directional and send less light up?

Any recommendations on light spacing with 4' or 8' strips?

Rows 10' apart and 12' from fixture to fixture be adequate at 16'-20'?

CT

 

[cybrdyke]

Just to follow up on the "CFL is being abandoned" comment. Here is a little news for ya....
http://gizmodo.com/ge-will-no-longer-make-cfl-lighbulbs-1756344245

 

[nsula_country]

Just to follow up on the "CFL is being abandoned" comment. Here is a little news for ya....
http://gizmodo.com/ge-will-no-longer-make-cfl-lighbulbs-1756344245

Good read. I never really liked the CFL's and don't even use them in my house. Though dimmable LED can light upgrades look nice!

I believe that the T8 strip wins again here!

CT