Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
Coupon (90.98 USD): 13f142
(CouponsFromChina.com tip: apply it in your 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): BGaDmITAd, aff7off, bgchinafest, 502C6B, BGBFAFF2019, BGCITYADS2019, Email5, 2020CNY, BGLIGHT2020, bGhOnEy10, BGdragonBoat, BGSS10%SW, bgshOOp10, BGLIGHT0920, BgoFErTaSchInA10, BGELIG0920, BgcLuBofErtA10, BGAFF10OFF, BGCuponation10
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for Xiaomi BelaDESIGN Wood LED Table Lamp.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).