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 (335.99 USD): FIN4264
Coupon (366.04 USD): cbrIDgTec
(CouponsFromChina.com tip: this code has to be applied 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): BGCuponation10, FIN1826, BGLEPSET
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Astrolux WP2 with Astrolux WP1 Flashlights with 21700 Battery is here.
Price records source(s): Banggood
Click on image to enlarge.
You can set price alert (for Banggood).