Amazon Prime Members! Through today (7/10) only, you can score a sweet deal on a TP-Link Kasa Smart Wi-Fi Light Switch from Amazon. They regularly sell it for $51.07. It is on sale for only $27.99 + FREE Shipping now! This smart switch is easy to install and connects to your home Wi-Fi through the Kasa App. It will then let you set schedules and track energy use. Go grab yours here today!