Christopher NullFreelance Contributor, TechHive

Christopher Null is a veteran technology and business journalist. He contributes regularly to TechHive, PCWorld, and Wired, and operates the websites Drinkhacker and Film Racket. Disclosure: He also writes for Hewlett-Packad's marketing website TechBeacon.

Lightify color LED smart bulb

Ledvance Lightify RGBW A19 review: Affordable smart lighting with a steep learning curve

You’ll find lots of form factors in the Ledvance Lightify collection, but getting the most out of them takes some effort.

Philips Hue Color and Ambiance Starter Kit

Philips Hue White and Color Ambiance Kit review: Still the market leader

No manufacturer has done more to advance the concept of smart LED bulbs.

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LIFX Color 1000

LIFX Color 1000 review: One of the best smart bulbs gets brighter and better

This year’s model is smaller, lighter, and brighter than the original, but scheduling within its app remains a weak spot.

tech that died 2015 primary

12 technologies that died in 2015

Some tech died quickly. Some faded away. For better or worse, we look back at what we lost in 2015.