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 (22.09 USD): BGAlerabat15
Coupon (22.09 USD): BGtorch7
Coupon (23.39 USD): BGtorch2
(CouponsFromChina.com tip: this code has to be applied 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): BRANDXS, BGF1111, fInbG2020, BGTOENA, BGSM30%, BGAHIU1, BGTBD, BGUS20, BGP50, BG1128, BGYW30, cbrIDgTec, BG10OFFAFF1, BGYW72, BANGGOODSD, BGTorch4, BGtorch3
(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 XANES 3320 P50 XHP50 Flashlight With 26650 Battery.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).