LED Frequently Asked Questions
Check out this primer from The U.S. Department of Energy that answers common questions about LED lighting.
Cost Savings Calculator
Learn how LED solutions can help your organization cut costs by running more efficient facilities.
LED lighting continues to develop as a cost-effective and environmentally preferable alternative to incandescent bulbs. Grainger has the LED lights, LED replacement bulbs and helpful resources you can use to make an informed decision about this economical and advanced lighting option.
Why Buy LED?
LEDs emit little heat and no ultraviolet/infrared radiation. Because no heat is transferred with the light, the lamp and surrounding objects do not raise the ambient temperature which can help reduce your cooling costs.
Make the switch! Converting to LED Lamps from Conventional lighting provides your business with benefits such as:
- Improved energy efficiency compared to incandescent or halogen bulbs
- Considerably longer bulb life compared to incandescent or halogen bulbs
- No warm-up time required
- Many LED lamps meet 2012 lighting legislations's energy standards
How to Read the Label
The new nutrition-style label clearly displays the information you need to determine lamp color and brightness. Rememeber that you're looking for a brightness equivalent, or lumens. Different types of lamps offer varying levels of energy savings.
|Light Output/Lumens |
The higher the number, the more light is emitted.
The lower the wattage, the less energy used.
Lumens per Watt/Efficacy
The higher the number, the more efficient the product.
Color Rendering Index(CRI)
Measures color accuracy. Color rendition is the effect of the lamp's light spectrum on the color appearance of objects.
|Correlated Color |
Measures light color. "Cool" colors have higher Kelvin* temperatures; "warm" have lower color temperatures; Color temperatures higher than 6500 are outside of the defined region for white light, but may be appropriate for outdoor applications.
*Light color is measured on a temperature scale referred to as Kelvins. Lower Kelvin numbers appear more yellow (warmer), while highter Kelvin numbers appear more blue (cooler). Kelvins are denoted with a "K" on new lighting packaging.