Hangar Lighting

[Mystic195]

I recently purchased a fully finished hangar with 12 T12 HO fluorescent fixtures. The previous owner had removed half of the bulbs due to it being too bright for him. The hangar measures 50 x 60 with 18' ceilings. I have been going back and forth between the UFO style LED's and Linear Style. The original fixtures are 16,000 lumens and I would like to stay with at least that output if not more. The hangar will be used as a showroom and detailing. I have looked at countless fixtures and am looking for any feedback on the different brands or styles of lights.

We just had the floor done with epoxy and have been told a lens cover is a must otherwise you will see reflections.

 

[Stuart in MN]

I recently specified some Columbia Lighting LWS fixtures for a commercial high bay lighting project, they seem like they're pretty good. Columbia has some other LED high bays with more lumens, maybe look at the LLHV.

https://www.hubbell.com/columbialig...equence-asc&q=:PLPSequence-asc:brandFacet:COL

 

[mark flucke]

contact any lighting supplier and ask for a lighting layout-give them every dimension and how the building is to be used--ask for their recommendation----then ask another supplier the same question---then a third= linear leds with a FROSTED lense would be my recommendation--they will be of the high bay variety-the round/ufo fixtures are neat; however, they will move very easily in a breeze and drive you bonkers(rigid pendant mounting would cure this)----2'x4' linears are my recommendation and mount them on strut-a good layout takes into account the differing angle that an led has from a florescent---dimming is another thing all together--i would suggest zoning the layout to reduce the light output, but if you utilize dimmers remember there are led specific dimmers that use dimming conductors and power conductors-welcome to conduit and my world

 

[mark flucke]

5000 k fixtures are a must--imho

 

[Mystic195]

We have already had three lighting contractors out but they all just want to do the LED retrofits to the existing fluorescents. I have come to the conclusion that they are doing that because that's where the most profit is on the ComEd rebate program. The lights will definitely be 5000k. I think the linear 4' would work the best just debating on who makes the best fixture.

 

[cybrdyke]

We have already had three lighting contractors out but they all just want to do the LED retrofits to the existing fluorescents. I have come to the conclusion that they are doing that because that's where the most profit is on the ComEd rebate program. The lights will definitely be 5000k. I think the linear 4' would work the best just debating on who makes the best fixture.

Typically, the rebates are better for new fixtures. I'm not familiar with your local rebate, though.
If the existing lights have been installed using conduit, then that's why they want to retrofit instead of replace. It's a labor saver.
CD

 

[Platonic Solid]

We just had the floor done with epoxy and have been told a lens cover is a must otherwise you will see reflections.

If you have a high-gloss floor you run the risk of uncomfortable glare regardless of whether the fixture has a diffuser (though it helps).

Though it costs more, using higher quantity of lower lumen fixtures reduces floor glare issue, shadows and provides more even light distribution.

At 16000 lumens you'd need about 24 fixtures, 20 fixtures at 19000 Lm, 16 at 24000 Lm. assuming fixtures are mounted at 18'.

Though they don't have a diffuser, you could use 30 of this Lithonia JEBL (link) fixture for about $3500 after taking advantage of their 15% zmail signup offer.