The light bulb landscape is rapidly evolving: incandescents are on the decline, compact fluorescents have become increasingly standard, and LED bulbs are becoming more affordable. The options one faces when replacing a bulb can be overwhelming. Recently, Marco Arment (creator of Instapaper and cofounder of Tumblr) performed a thorough and detailed test of some of the top LED light bulbs available.In his review, Marco tested four LED bulbs, a standard 60W incandescent, a compact fluorescent, and a halogen-incandescent. He photographed the bulbs while off, on, and under a lampshade, and compared their brightness, directionality, color temperature, power efficiency, value, and aesthetics. I like that he didn't simply line up the bulbs in a feature-by-feature comparison chart, but instead gathered his findings in long form writing that better captures each bulb's real world strengths and weaknesses.
Marco found a practical favorite, but not an all out champion. A few days later, he posted a follow-up: one last bulb had come to his attention, and it beat all the original candidates. For his conclusion, I recommend reading through the two posts in full. You'll come away not only with a great LED light bulb recommendation, but a better understanding of these products' promises and perils.