Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-SS8 Tuya 800W RF Wi-Fi Smart Wall Switch [EU] (-3 USD)
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (25.10 USD): 2203ActiesNL
(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): 13f142, BG89a203, BGe81b20, BG30964b, 6GSGIT, BGD11014, BGB5014, BG6ac42c, BGf22ded, BG297af4, ADMITAD2212, BGSmart6, MVC8SPRING, 8BGwbg2204, 8Couponsde, BGJUNEGSG9, Cuponation9, 9OFFSUMMER, BG753984, BGd1303c
(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-SS8 Tuya 800W RF Wi-Fi Smart Wall Switch [EU] (-3 USD)
Price history and price alert
Price history (for all/most countries) for BlitzWolf BW-SS8 Tuya 800W RF Wi-Fi Smart Wall Switch is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).