Taking a closer look at color-changing LEDs

If you've been looking into smartening things up around the home, then you've probably at least considered color-changing LEDs. The most prominent option out there is the Philips Hue LED kit, though we've also had fun playing around with the Lumen LED Color Smart Bulb from Tabu. Both bulbs boast plenty of smart features. The Zigbee-powered Hue LEDs are compatible with IFTTT and SmartThings, while the Bluetooth-powered Lumen LED offers simple scheduling and fun features such as a native music-sync mode. But with all of the focus on smarts, it's easy to forget about the core functionality of these things. We wanted to know: are these color-changing bulbs actually good at changing colors?