Temperature and carbon dioxide sensors can allow bulbs to deliver data to building management systems.

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The energy efficiency tools can be used with a network of assets such as smart meters, smart plugs and building management systems to keep a tab on real-time energy use of corporate assets.

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"We thought we could replicate" the same games business model on mobile as online, said Doug Purdy, a Facebook director of product management, before discovering that developers were building stand-alone apps, tailored to the Android and Apple operating systems.

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