Aliexpress
Click here… to search for Astrolux EC01 XHP50.2 Flashlight with 5000mAh Battery on 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 (36.50 USD): FIN7843
Coupon (45.69 USD): BG8Alerabat
Coupon (45.69 USD): BGOutlight10
(CouponsFromChina.com tip: put item in your cart and apply coupon code there 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, BGMYB17, 4BLF, BGHONEY2110, BG10OFFAFF, cbrIDgTec, BGJH03, BGEC01C, BGdeals45, BGdeals66, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGTorch4, BGASTB, BGEC01CC, BGtorch2, BGAlerabatI, BGASTC, BG3fed9c, BGtorch9, BGLED07
(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 Astrolux EC01 XHP50.2 Flashlight with 5000mAh Battery.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).