Aliexpress
Click here… to search for Yeelight Human Body Induction Cabinet Light 4000K on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (13.74 USD): TTSUMMER8
Coupon (14.04 USD): BG00c906
(CouponsFromChina.com tip: apply code in your basket (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): BGXINP327, BGLIG12, BGTYOC327, BGISYL327, BGTYO327, BGTYOD327, BGGD327, BGTYOG327, BG10OFFAFF1, BGYEELIGHT21, BG2589f4, BGTYOI327, 00c906, ADMITAD2212, 2022ACTIESNL, BGLED2203, 8Couponsde, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGf94f14, BGLED2206
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Yeelight Human Body Induction Cabinet Light 4000K? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).