I tested a $33 Philips Hue rival, and its best trick is impossible to ignore

I've used Philips Hue color bulbs for years, and their colors have never let me down. What they can't do is show more than one color at a time. The whole bulb glows purple, or it glows orange. So when Linkind sent me six of its Smart Light Sticks to test, the 50 color zones caught my attention first.