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.
TCP Elite PAR38 LED
Best for Outdoors
Along with being shatter-resistant and approved for damp conditions, the 90W-equivalent PAR38 doesn't generate excessive heat that could reduce its life span – important for all LEDs but even more so for sealed outdoor fixtures. And while the cooler "daylight" glow would be unflattering inside, it provided a welcome boost of nighttime visibility. [$37; homedepot.com]