Lighting design help needed

[Merbesfield]

We have a warehouse/shop that is 40'x80'x16' in middle. We have it basically broken into 4 20'x40' bays with one of the 20'x40' taken up by paint booth and storage areas, so really only 3 bays. We currently only have 6 175W MH and they are horrible and most don't even work. I am thinking about replacing them with some of the round high bay lights like these, but I know there is a formula for getting the right light so we have enough light yet not be blinded or cast shadows. These are available is numerous power ratings. One electrician suggested 150W LED UFO 5000K. I would love some help from those that know.

https://greenlightdepot.com/collect...-tempered-glass-ul-dlc?variant=15187937984555

 

[ducatithunder]

Talk to Hyperlite. Give them the spec of your building and how you plan to use it. They will give you a report of lights and recommendations on placement. I did this with my 28x46x12 garage/shop. I ended up with 8 100w Hyperlite Highbay UFOs. Coverage is very good.

 

[cybrdyke]

https://greenlightdepot.com/collect...-tempered-glass-ul-dlc?variant=15187937984555

You need a layout done for you. In order for that to happen, you need to determine how much light (in foot-candles) you want. This is your choice. Most warehouses these days shoot for 10fc, most work shops shoot for 50fc or more. A professional auto shop should be over 75fc. So, you need to make a determination.
At 16' for an auto shop, you're probably looking at 16-20 fixtures. That's just a guess.


Your link is a great example of a fixture NOT to buy and a seller NOT to buy from. I only say this for others that might be looking for fixtures on the internet. These are some of the things that separate the good ones from the bad.
The seller doesn't readily tell you the manufacturer of the fixture. To me, that's a deal breaker. They do that so that they can substitute after you order. The seller tells you that the fixture is UL listed, but deletes the UL file number so you cant verify it. This is the ONLY way you have to verify who makes the fixture and if it's actually UL listed. They tell you that the diodes are made by Philips, a very legitimate brand. But the Greentek spec sheet says that they're made by Hongli, a not-so-legitimate brand. In my opinion, this seller is the lowest of the low.
The fixture uses a 5700K LED. This is also a deal breaker. A diode of that color is a factory second or a blem that no other manufacturer would ever use. The information about the manufacturer of the diodes is conflicting and a no-name company makes the driver.
These are just some of the things that might not be obvious to folks that aren't in the lighting business.
Good luck,
CD

 

[Merbesfield]

@cybrdyke what you say is the exact reason I will not buy on the internet. It only takes a few minutes surfing to see there are way too many sellers and brands out there to make a good and knowledgeable buying decision. When prices vary as much as you see on the net, there is more than meets the eye to a fixture, and this is not my business. I am in the Hardscape construction business, not a lighting engineer. As for my needs, I do hobby metal work on my cars and I need to be able to see. Especially important as I get older and my vision gets worse. All that being said, I am sure there are some good brands out there once I know what I need and such. So who does the design? Years ago I know the the local lighting supply house would do designs complementary, but not sure any more.

 

[ducatithunder]

You need a layout done for you. In order for that to happen, you need to determine how much light (in foot-candles) you want. This is your choice. Most warehouses these days shoot for 10fc, most work shops shoot for 50fc or more. A professional auto shop should be over 75fc. So, you need to make a determination.
At 16' for an auto shop, you're probably looking at 16-20 fixtures. That's just a guess.


Your link is a great example of a fixture NOT to buy and a seller NOT to buy from. I only say this for others that might be looking for fixtures on the internet. These are some of the things that separate the good ones from the bad.

CD

Like I stated. These guys will give you a lighting plan based on what your looking to do. Price point is good. The quality of the lamp is very good. They are from china, but what isnt now a days. They are also UL listed and dimmable if thats your thing. I have the 100w version of this lamp. I also have the option diffusers.

https://www.amazon.com/dp/B0761L281Z/?tag=atomicindus08-20