Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. One coupon is available. Cool!
Link: Banggood product page
Coupon (41.35 USD): BGOutlight10
(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): BGtorch2, Lum001, BGAlerabatI, FIN3256
(there’s a little possibility that old coupon will work)
Price history and price alert
Check out price history chart (for all/most countries) for FOLOMOV XP-P Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).