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Understanding the right lighting that spaces like manufacturing plants, factories and other facilities need is very crucial for the owners as well as the electricians who carry out the process.

The process gets further complicated by the high risk of accidents and other hazards that exists in these spaces.

Both the things complicate each other as poor lighting increases the risk factor multi-folds.

The two organizations Illuminations Engineers Society and American National Standards Institute have designed the factory lighting standards that have been readily adopted by the OSHA.

This means that there exist penalties for the factories not following the standards.

Industrial Lighting

General Guidelines: ANSI/IES-RP-7-1991

The metric of measurement for light levels is called lux (one lumen per square meter) and the lux meter follows the same metric.

While the ANSI/IES guidelines set the essential conditions for lighting systems, they also are enough flexible to contain all individual demands.

Like, the ANSI/IES standards recommend around 10-20 foot candles light levels in the areas like lobbies or dining areas where visual clarity is not a crucial need.

At the same time, they recommend 20-50 foot candles for areas where visual clarity and high color contrast is important for the tasks.

Similarly, the workstations like electronic assemblies need extremely precise visual clarity and the apt light levels for such areas have been recommended to be 200-500 foot candles.

What methodology was used for the standards?

The standards of the lighting and luminance levels in factory settings were determined by experts in lighting

This becomes very important as not every factory has the same settings that make their lighting demands varying too as per their settings.

To satisfy these conditions, the IES/ANSI standards were devised with enough room to accommodate all kinds of lighting needs.

These standards are the essential standards that every lighting system must meet. For instance, the lighting needs of the office area and assembly area in a factory would be different.

General Bay Lights for Factory Areas

What makes lighting plans crucial? These facilitate a digital representation of lighting settings that can be viewed beforehand and modified as per the needs to be assured about the purchase. You can even test these plans with different lightings. The aim is to make the buyer properly informed.

This will save you money too. Just choose the ideal light!

Lighting levels for factories

Light level intensities are measured with the unit called Lux. 1 lux of light equals I lumen per square meter.

It represents the illumination level of the particular surface. Lux represents the light intensity that is visible to the human eye.

Sunlight has the following lux levels- 10.8 during twilight to 120000 during the noontime.

Different industrial settings require different lux levels. This is checked with the help of a lux meter that calculates ideal illumination levels for space, affected bodies, and activities.

The table below gives the adequate lux levels suitable for various industrial settings.

The table below gives the adequate lux levels suitable for various industrial settings.


Foot Candles Usage
100-200 Detail inspection
100-150 Comprehensive assembling
50-100 General uses
15-50 Common workspace
10-30 Warehouse areas

Why LED Lights for Manufacturing And Factories Are Lights A Better Option

1. Higher Efficiency or Lumens per Watt

The true efficiency of any light source is denoted by its luminosity efficiency.

This is a measure of the lumens produced by the light for every watt of power it consumes and this value can be used for the comparison of LED and other bulbs.

LEDs have far higher efficiency than every other light. The efficiency ratings are even higher for high-quality LEDs.

Look for LED fixtures with 130-200 lumen/watt ratings.

How do long term savings make up for the initial cost?

The cost of higher efficiency LEDs is higher than the low-efficiency bulbs. Similarly, the savings that they generate is much higher than the initial investment they require.

We recommend you choose higher efficiency LEDs for maximum savings with LED conversion.


Coca Cola Warehouse 150w High Bay2

2. Lumen brightness

So much goes into picking the right fixture to achieve that perfect balance of light levels and light balance. Knowing what you need can make the difference between success and failure.

How to determine the ideal light system?

This is very tough. We can help you with our lighting software that assesses your building layout. Creating a lighting plan finds the best fixture and the right amount of lumens to get the lighting perfect.

3. Adapts for different Voltages

Understanding your current voltage requirements is key to picking the right lights. For the most part, there are two ranges: 100V-277V. And 277-480V. Not all lights are available with high voltage driver options.

These drivers automatically switch to your incoming voltage supply. So as long as your lights are within the upper and lower range of the driver you select, your good.

3 Phase lighting is no issue either. Understanding how to wire 3 phase to a LED Driver is key, but easy to do once you understand what and how to do it.

4. Options for high temperatures

Heating problems in certain settings can seriously damage the LED lights. Thus, you need LED fixtures that remain resistant to temperature fluctuations beyond 50 to 122F too.

if you’re looking for high-temperature lights, we currently offer the following ranges

Options for high-temperature lights

Range 1: up to 158F
Range 2: up to 176F
Range 3: up to 194F
Range 4: up to 212F

We do provide high-temperature resistant fixtures but we recommend you to never install any fixture in the direct path of gas or hot air sources.

5.Better CRI

The color of any light is denoted by the CRI or color rendering index. This helps us differentiate the color visibility of any object under the target light and sunlight.

The poor light color quality of HID lamps makes them unsuitable for various settings. The properly visible light color makes huge differences in factory settings.

The color contrast and clarity come out clearly.

We recommend LED lights with CRIs between 70 and 85. Standard is 70, which for the most part, will be ideal for most factory lighting needs.


CRI scores of over 70 are all good. If you want lights for special spaces where fine colors and detailing is crucial, go for 80-90 CRI.

LED High Bay Lighting

About the Author

Cory Peterson is Director of Sales & Marketing at LED Lighting Supply where he focuses on improving customer experience and revenue operations. Cory writes about commercial & industrial lighting, along with topics important to contractors and facility managers. In his free time, Cory enjoys traveling, snorkeling, exercise and cooking.

See more posts by Cory Peterson