Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There are no coupons available at this moment in Banggood.
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): BGS43CE, EYBG, BGTORCH, BGBFCR41, BGBFCR40, FA3239, AXMAS, BGASTROLUX, BGAST25, BGAFF10OFF, BGCuponation10, 4BLF, BGHONEY2110, BG10OFFAFF, BGwhielabel, BGflashlight, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGTorch4, BGtorch2, BGtorch3, BGAlerabat15, 2203ActiesNL, BGHome15off, MVC8SPRING
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Astrolux S43 Flashlight With Samsung 30Q 20A 18650? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).