We considered more than 20 smart-light-bulb systems and then spent eight weeks testing 10 contenders, confounding a family of four by constantly changing how their lights worked. After all that, we determined that the Philips Hue White and Color Ambiance A19 – Gen 4 is the best all-around smart LED bulb. Hue lets you change your lighting color easily and does everything other smart light bulbs do, and it’s also part of a larger product and app ecosystem, allowing for more flexibility and creativity than any other smart bulb we tested. Plus, it’s compatible with the widest variety of smart-home systems, including Apple’s HomeKit, Samsung’s SmartThings hub, Amazon’s Alexa, and Google Home. It’s not the cheapest bulb we tested, but its reliable performance and wide compatibility make it a solid choice for any smart-home enthusiast or newbie.