A light socket can serve as a screw-in ceiling fan, a projector, or a Bluetooth speaker. But light sockets can be incredibly useful. If your home lacks convenient plugs, they can provide alternative ...
Beam, a lightbulb-shaped gadget, promises projects your smartphone screen onto any surface you want. Launched on Kickstarter this month, the $350 projector screws into any lightbulb socket, so you can ...
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