Size 86mm*86mm*34mm, Static Power Loss <0.3W, Working Current MAX 10A, APP Name BlitzWolf APP / Smart Life / TuyaSmart, Voice Control Amazon Alexa / Google Home, Brand BlitzWolf, Working Humidity 10%-80%, Working Voltage AC110-240V(50/60Hz), Material Flame retardant ABS+ Glass, Wireless Protocol IEEE 802.11 b/g/n (2.4GHz WIFI), Maximum Load 600W (normal work) / Instantaneous Maximum 2400W, Encryption AES/TKIP, Working Temperature -20 °C ~ 75 °C, Model BW-SS12, Safety WEP/WPA-PSK/WPA2-PSK. Check coupons or create price alert down below. What is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($21.43): Cuponation9
2. ($21.67): BG8ReviTrage
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGd6afda, BGSHOM15, BGSHE15, 13f142, BGISSE489, BGISS489, BGGR489, BGc714d4, BGcou489, BG264ca5, BGYE489, BGD11021, BGB5021, BG672a88, ADMITAD2212, BGSmart6, MVC8SPRING, tRaDetRaCKeR, BGceadde, 8wEbgaInS5, pROMo8cuPoN, BGJUNEGSG9
(I don’t think these’re gonna work, but you can try ’em out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – BlitzWolf BW-SS12 WiFi Smart Curtain Shutter Switch [EU] ($-3)
Price history and price alert
Here is price history (for all/most countries) for BlitzWolf BW-SS12 WiFi Smart Curtain Shutter Switch. The lowest price was: $14.66.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).