Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. I have no active coupons for you right now.
Link: Banggood product page
Price: -3 USD
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): F17921, BG10OFFAFF1, FIN7829, BANGGOODSD, 6GSGIT, BGTorch4, 00c906, BGtorch3, BGAlerabat15, BGtorch7, BGtorch2
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for LUMINTOP FWAA 219C XPG3 SST20 Titanium Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).