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 (25.99 USD): BGS21ABR
Coupon (26.39 USD): BGAlerabatI
Coupon (26.99 USD): BGtorch2
(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): BGtorch3, BGAlerabat15, BGtorch7
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Here is price history (for all/most countries) for Convoy S21A B35AM R9080 Flashlight 4500K 1500lm.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).