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 (15.00 USD): 399050
Coupon (25.97 USD): linepayflt
Coupon (25.97 USD): 502C6B
Coupon (27.80 USD): 4BLF
(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): MH5TK
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for ThorFire TK05 Flashlight with Battery and Charger.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).