Energy Efficiency

LED lighting is now the default choice in most U.S. homes, but "LED" on its own does not automatically mean a lighting plan is efficient — how a room is lit, when lights are left on, and whether controls like timers and motion sensors are used well all matter as much as the bulb technology itself. This category covers the practical side of energy efficiency: what actually makes LED lighting use less energy, what lifespan claims on packaging really mean (and do not mean), and the controls and habits that make the biggest difference in day-to-day use.

We are deliberately careful with claims in this section. You will not find a specific dollar figure promising what you will save by switching to LED bulbs, because actual savings depend on your electricity rate, how many hours a fixture runs, and what you are switching from — a claim precise enough to sound convincing would also be precise enough to be misleading for most households. Instead, these guides explain the underlying mechanics (why LEDs convert more electricity into visible light and less into waste heat than older technologies) so you can reason about your own situation rather than relying on a number that may not apply to it.

The same caution applies to lifespan. A bulb rated for a given number of hours is not a guarantee — real-world lifespan is affected by how often a fixture is switched on and off, the heat environment it sits in, and whether it is used with compatible dimming controls. We explain what the rating actually represents and the conditions that tend to shorten or extend it in practice, which is more useful than treating the number on the box as gospel.

This category also covers the home lighting audit — a simple, repeatable way to walk through your own home and identify where lighting is working against you, whether that is an incandescent holdout in a fixture that is on for hours every day, a room with no controls beyond a single wall switch, or windows that could be used for more daylight than they currently are. Pair that audit with using daylight well and the right controls for each room, and most homes find meaningful, sustainable improvements without replacing a single fixture.