Aliexpress
Here are coupons that you can use.
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Yeelight YLTS02YL 5W Smart Downlight [EU] (-3 USD)
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (31.52 USD): Cuponation9
Coupon (31.87 USD): BG8ReviTrage
Coupon (32.56 USD): BG00c906
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGYLTS02YL, 800fa5, BGYEE2021, BGYEEL10, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGLIG12, BG10OFFAFF1, BGYEELIGHT21, Terence, BGLED2203, 8Couponsde, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGf94f14, BGLED2206, BGLED07
(you can check these old coupons out, but these probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. Europe – Xiaomi Yeelight YLTS02YL 5W Smart Downlight [EU] (-3 USD)
Price history and price alert
Check out price history chart (for all/most countries) for Xiaomi Yeelight YLTS02YL 5W Smart Downlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).