Arcade-style light switch turns click into pew pew pew Indulge your inner retro gamer with a light switch plate with a joystick and buttons that trigger classic arcade sounds.

A new Philips Hue add-on turns your existing light switches into smart ones that keep your lights available even if someone flicks the switch off.

Big Blue researchers have now developed a switch that will control the flow of data within chips that use light pulses instead of copper wires.