Why spend a fortune on smart light bulbs when the ones you have work just fine? That's the idea behind Emberlight. This intelligent lighting accessory sits between a bulb and its socket, giving you the ability to control any dimmable bulb right from your phone over Wi-Fi. And while this gives you the ability to control multiple lights with a single touch, map out preset lighting "moods", and have the lights turn on based on your proximity to home, each unit also sports Bluetooth LE, giving it the ability to turn lights on or off as you enter or exit a room. Now that's smart.