Amazon offers the GE Z-Wave In-Wall Smart Switch
in White, model no. 12727, for $34.96. In cart it falls to $29.72
. Plus, Prime members bag free shipping
. (Non-members can spend $35 or more to bag free shipping; otherwise, shipping adds $6.72.) That's the lowest total price we could find by $10. It adds wireless controls to any permanently installed lighting or fan with your mobile device or computer.