Practical advice on commercial lighting from LED retrofits to lighting design.

If you're responsible for determining the right ambiance and light quality of your application, then you probably already know how important understanding Color Rendering Index (CRI) and Correlated Color Temperature (CCT) is.

Here's the problem: CRI and CCT are anything but easy to understand.

Color Rendering Index is calculated based on how well a light source renders eight specific pastel colors. The theory is if it light renders these colors well, it should render all colors well. CRI is a simple and helpful lighting spec to predict how good the visual output of a lighting product will be.

Correlated Color Temperature (CCT or just color temperature) gauges how yellow or blue light appears. It’s measured in Kelvin and usually falls in a range between 2200 and 6500 Kelvin degrees. Warm light sources have low color temperatures (2200-3000K), featuring red, orange, and yellow colors. Cool light sources have high color temperatures (>4000K) and feature blue light.

Properly aimed lighting is one of the most important, yet easily overlooked aspects of great retail design. Done correctly, it will accent the merchandise you want to sell and lead your customers through your store. Check out this step-by-step guide on aiming to make your store attractive to customers.

Imagine yourself ordering a medium rare, large, ribeye steak at a restaurant only to cut into it for the middle to appear orange and unappetizing. Or picture yourself at a fine dining restaurant that's so poorly lit your entire party has to take out their cell phones just to view the menu. 

Last year, we published our first-ever LED Buying Guide. We say over and over again around here that our goal is to make lighting easy for our customers, and the LED Buying Guide was published with that objective in mind.

The lighting world has undergone rapid changes over the last decade with the emergence and proliferation of light emitting diode (LED) lighting technology. Just seven years ago, in 2010, less than 10 manufacturers made up 90 percent of the lighting market. Last year, that market share was spread between more than 400 manufacturers, each with its own fluid, iterative product line.

That's a lot to keep up with.

So, how do we make things easier for you?

About a year ago, I was on a Costco run, but was turned away when I arrived. It was the middle of the day and the whole store was shut down.

Care to guess why?

Last month, Philips Lighting and the City of Dubai jointly announced the development of "the world's most efficient light bulb," touting a new LED filament bulb that can reportedly produce up to 200 lumens per watt.

Solid State Lighting Design explained more about the lamps, saying Philips planned to roll the lamps out by the end of the year:

When making the decision to purchase a certain lighting product, are there any questions that matter more than price, availability, and timeline?

Perhaps that's the case with anything you order –– how much does it cost, is it in stock, and when am I going to get it? 

But the stakes can be pretty high when you're ordering lighting to get your building or store into shape before an executive visits or ahead of the holidays or when you're knee-deep in a national rollout schedule.

So, if you call Regency right now and purchase lighting, how long will it take to get your order?

More is not always better in restaurant lighting. We've touched on that before when discussing pitfalls to avoid in restaurant lighting. Regardless of whether you manage a fast casual or fine dining restaurant, your lighting needs to be inviting, warm, friendly, and consistent with your brand to bring your customers in and keep them comfortable so they're likely to return.

There are numerous LED lighting advantages for businesses, even though it may seem that we’re bringing to light a lot of instances when LED lighting may not be the best choice lately. We talk with many clients who question if switching to LED lighting is the right investment for their company and, truthfully, more often than not, it is.

Whether you manage a fast food restaurant or a high-end steakhouse, it’s imperative to have the right lighting. You want your customers to feel comfortable in your space and you want the food they order to look attractive when it makes it to the table.