It's a testament to the increasing quality of LED light bulbs
that GNC customers probably won't notice their favorite store has gone "green". From their headquarters in Pittsburgh to each of their 2600+ stores across the US and Canada, all incandescent light bulbs are being replaced by energy efficient LED light bulbs. LED light bulbs these days can be engineered to produce a variety of color temperatures, including temperatures identical to incandescent light.
Working with Sylvania
, GNC has made some big changes overall in its energy management program. The LED light bulbs retrofit alone resulted in electricity savings of 10 million kilowatts per year. That's based on the replacement of as many as 45,000 incandescent light bulbs. Further efforts to reduce electricity consumption include the installation of energy efficient thermometers in all stores, and at their headquarters in Pittsburgh they have implemented a building-wide lights-off program during non-business hours.
These are some excellent ways for businesses to go green. LED light bulbs in particular are a no-brainer for any business able to afford the initial investment for a retrofit. The ROI on energy efficient light bulbs gets higher and higher the more bulbs you replace, which is why large-scale retrofits produce such amazing savings numbers.
The choice between energy efficient light bulbs seems easier for businesses and the wealthy; with similar high quality, it comes down to the negatives of each bulb. LEDs have few negatives, mostly related to lighting issues that will be fixed in later versions. Compact fluorescent light bulbs, on the other hand, contain mercury as an essential ingredient for producing light. CFLs are still used widely, but the time of the LED light bulb is surely upon us.