Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (25.55 USD): BGTYSY165
Coupon (25.99 USD): BGTYSE165
Coupon (64.44 USD): BG10OFFAFF1
(CouponsFromChina.com tip: just apply this code 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): BGTDW445, BGDG15, BGDigoo15%, 20%DG422, bGhOnEy10, BGSLW85, BGAFF10OFF, BGdragonBoat, BGSS10%SW, BGDGASG, BGHome15%, BGHOMEA15%, BgcLuBofErtA10, BGOCFO165, BGHBHJ105, BGCuponation10, 13f142, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGZX165, BGDGLT165, BGisly165, BGisl165, BGPDhome73, BGisJU165, BGLIG12, BGTYOC165
(probably won’t work, but you can try them out)
Price history and price alert
Do you need price history chart (for all/most countries) for DIGOO DG-TDW LED Table Lamp? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).