The commercial / industrial lighting industry has undergone a major revolution as of late. Manufacturers have saturated the market with a wide variety of versatile, high quality interior and exterior LED products that average >25% energy savings over traditional sources. Their long life ratings show promise of drastically reducing maintenance cycles for significant operations and Read More >

When considering an efficient lighting retrofit, it’s prudent to consider not just luminaire efficiency, but also the overall lighting design in your facility. IES (Illuminating Engineering Society) recommended practices address minimal footcandle requirements for specific space types, while also considering uniformity, background contrast, surface brightness (glare) and weighting factors such as age of occupants and Read More >

High intensity LED lighting is helping to reduce the effects of dirt depreciation in manufacturing environments. These compact light sources have a much lower surface area than fluorescent high-bays, which is keeping them cleaner for longer. Dirt depreciation is a common light loss factor that affects all lighting technologies. Manufacturing facilities typically have dirty environments, Read More >

For over 80 years, lighting professionals have been using the Color Rendering Index to evaluate the fidelity of artificial light coloring. Though it has been a valuable tool for many years, there are several reasons why it is now outdated and time to move on to the TM-30-15. CRI was determined by comparing a reference Read More >

Evergreen Consulting Group coordinates free lighting retrofit for Friendly House Friendly House, a nonprofit neighborhood center and social service agency located at 1737 NW 26th Ave., has been helping Portlanders since 1930. Recently, they enjoyed the community's generosity as the beneficiaries of an energy efficient lighting upgrade made possible through Evergreen Consulting Group's annual Giving Read More >