No Neutral Wire Needed!
If you are looking for a quick guide on how to replace your regular light switch with a Smart Zwave light switch that will work with your smart home. I use it with a Wink hub but you could also use with a Amazon Echo or Google Home Device.

Amazon link:
https://www.amazon.com/LUTRON-PD-6WCL-WH-Caseta-Wireless-Dimmer/dp/B00KLAXFQA/ref=pd_sbs_60_2?_encoding=UTF8&pd_rd_i=B00KLAXFQA&pd_rd_r=6S5C6ZZJYZSGXM9MP8MY&pd_rd_w=yk4to&pd_rd_wg=EWBsw&psc=1&refRID=6S5C6ZZJYZSGXM9MP8MY