The Zuli Smartplug shrinks geo-fencing to room-fencing, for precision control of your home lighting system

Most smart-home systems rely on a central hub to manage light switches, wall plugs, door/window sensors, and other devices. Zuli has a different idea: Its smart plugs use Bluetooth LE (Low Energy) to form a mesh network. The network uses your smartphone to determine your location, so it can turn a light on when you enter a darkened room, and turn it off when you leave. The clever concept enjoyed a successful Kickstarter campaign earlier this year, and more recently caught the attention of several seed-round investors, including Logitech.