Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-SS12 WiFi Smart Curtain Shutter Switch [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (21.43 USD): Cuponation9
Coupon (21.67 USD): BG8ReviTrage
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGd6afda, BGSHOM15, BGSHE15, 13f142, BGISSE489, BGISS489, BGGR489, BGc714d4, BGcou489, BG264ca5, BGYE489, BGD11021, BGB5021, BG672a88, ADMITAD2212, BGSmart6, MVC8SPRING, tRaDetRaCKeR, BGceadde, 8wEbgaInS5, pROMo8cuPoN, BGJUNEGSG9
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-SS12 WiFi Smart Curtain Shutter Switch [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for BlitzWolf BW-SS12 WiFi Smart Curtain Shutter Switch.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).