LEDs are more energy efficient and durable than ever – they come in many shapes and sizes and a rainbow of hues. And, as if all those reasons weren't enough, guess what?
Before buying new bulbs, it's a good idea to understand the bulb basics. Once you know the essentials, it's easy to see why LEDs are shining a new way forward.
Look for the ENERGY STAR® label
Bulbs, fixtures and even decorative string lights that have earned the ENERGY STAR® label help you save money and energy with the latest in efficient technology.
Look for the ENERGY STAR® label for high quality and performance, a long life and manufacturer-backed warranties.
Watts vs Lumens
Watts measure the amount of electricity a bulb uses, while lumens (lu) measure the brightness of the light produced. When you're shopping for new LEDs, be sure match old bulb wattage to new lumens for the right level of energy-efficient LED brightness.
40W → 450 lu
60W → 800 lu
75W → 1,100 lu
100W → 1,600 lu
What's a Kelvin?
LEDs come in many colour temperatures, measured in degrees of Kelvin, on a scale from 1,000 to 10,000.
A Kelvin is a unit of measurement used to describe the light appearance provided by a bulb. Colour temperature tells you what the look and feel of the light produced will be.
Lower Kelvins lean towards the warm end of the spectrum (orange-yellow, like the tone of an incandescent); higher Kelvin values tend to look cool (blue-white, similar to daylight).
How much you can save?
Each hour of LED use adds up to significant savings over time. Outdoor lights left on all night are a great place to switch to LEDs right away. Three 60W incandescent operating eight hours a day can cost you $40/year.