The average U.S. household includes 51 lightbulbs. Assuming all of those bulbs are 60W incandescents, over 22 years (a common estimate of LED-bulb life spans), you would save roughly $6,942 in energy costs by replacing them with output-equivalent LEDs. Factor in the combined price of the more than 800 incandescents you'd need to stock up on during that period (since most burn out in 1.4 years or less), compared to buying just 51 LEDs, and the total estimated savings for going all-LED comes to $8,639. A number that large is simply too hard to ignore. With all this in mind, we tested dozens of bulbs to find the ones that will help you make the right swap in any socket.
EcoSmart CR6 LED Downlight
Best for Recessed Lights
No more need to climb a ladder to replace that recessed bulb: The CR6 lasts for more than 32 years. It also features the best color-rendering we've seen in any LED, of any class. This is particularly noticeable in the kitchen, where lesser lights we tried made food look unappetizing. [$35; homedepot.com]