What homeowners should know about LEDs
And the technology has many benefits (along with a few drawbacks): They’re mercury-free, unlike compact fluorescents, which need special recycling. They’re more energy efficient. They use about 80 percent less energy than an incandescent bulb and 5 percent less than a fluorescent bulb. However, energy efficiency isn’t the only savings. LEDs are designed to last about 20 years or 10,000 hours of use. This means if you put one in your toddler’s room now, you won’t have to change the light bulb until after she graduates and you’ve repurposed the room.