Double Button Version, Rated Voltage: AC250V, Product size: 86*86*39.2mm, Version: Single Button Version, Installation Hole: 60mm, Rated Current: 16A, Triple Button Version, Working humidity: 0%-85%RH, Working temperature: -10~+40°C.
Go down and check coupons out. Remember to check price history if it is available. Let’s see what best price is ATM.
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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is no active coupon in my database right now (for Banggood).
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGYEE11COU, BGYLKG12YL, bgnewleds, BGLIGHT2020, BGYEBWCN, BGdragonBoat, bGhOnEy10, BGAFF10OFF, bgshOOp10, BGYEE20COUPON, BGLIGHT0920, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGYEE2021, BGYEEL10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1, BGYEELIGHT21, 00c906, BG00c906, ADMITAD2212, 2022ACTIESNL, Terence, BGLED2203
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 3 another warehouse/versions!
1. China – Yeelight YLKG12YL Single Wireless Smart Switch ($-3)
2. China – Yeelight YLKG13YL Double Wireless Smart Switch ($-3)
3. Europe – Yeelight YLKG13YL Double Wireless Smart Switch [EU] ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Yeelight YLKG14YL Triple Wireless Smart Switch. The lowest price was: $9.18.
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)).