Load range: ≤180W, Working humidity: 0%-85%RH, Wireless link: BLE4.2, Product size: 86*86*44.5mm, Product model: YLKG07YL, Input voltage: single fire line 220V-50Hz, Working temperature: -10~+40°C.
Basically copy coupon, view price history or create e-mail price alert. 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. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): 502C6B, TEEBET, TTxBG10, AFfbG10, BGBLUESW, bgxmaswt, BGYEE11COU, BGYLK893, BGLIGHT2020, BGYEBWCN, BGdragonBoat, bGhOnEy10, BGYEE20COUPON, bgshOOp10, BGLIGHT0920, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGYEE2021, BGAMQRKSB1, BGYEEL10, BG10OFFAFF, BGwhielabel, BG7ca84a, BGLIG12, BG10OFFAFF1, BGYEELIGHT21, BG42749c, 00c906, BGf2f71f
(these codes were not working in latest coupon update, but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Yeelight YLKG07YL Smart Light Dimmer [EU] ($-3)
Price history and price alert
Do you need price history chart (for all/most countries) for Xiaomi Yeelight YLKG07YL Smart Light Dimmer? There we go. The lowest price was: $9.99.
Price records source(s): Gearbest, 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)).