Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (29.62 USD): AC18
Coupon (30.36 USD): fInbG2020
Coupon (31.48 USD): AC19
Coupon (31.48 USD): BGff2020
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply 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): BGAX2, linepayflt, NA78, MRCSS
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for Amutorch AX2 XPL HD CW Flashlight is here.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).