Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. Too bad there’s no coupon right now 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): BG10OFFAFF1, BG928341, BG4d9120, 00c906, BG00c906, FIN9180, ADMITAD2212, 2022ACTIESNL, Terence, Tabby20, 2203ActiesNL, BG1efeb0, 8Couponsde, MVC8SPRING, 8BGwbg2204, tRaDetRaCKeR, BG71c041, BGbhlight01, BG8ReviTrage
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for WUBEN B2 1300lm Bike Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).