Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Moeshouse 220V WiFi Smart Light Switch RF433 [EU] (-3 USD)
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. CouponsFromChina software could not find any coupon for this product in Banggood.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG1735414, 6GSGIT, ADMITAD2212, BGSmart6, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BG8ReviTrage, Cuponation9
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Moeshouse 220V WiFi Smart Light Switch RF433 [EU] (-3 USD)
Price history and price alert
Do you need price history chart (for all/most countries) for Moeshouse 220V WiFi Smart Light Switch RF433? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).