Aliexpress
Click here… to search for LUMINTOP TD15S Flashlight on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (43.38 USD): BGTorch4
(CouponsFromChina.com tip: paste coupon code in your cart and click Apply 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): a35a34, brandLMT, FINTD15S, ECFKL, BGTORCH, fInbG2020, BGff2020, BGLMTB, BGwhielabel, BGflashlight, BG10OFFAFF1, BANGGOODSD
(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 TD15S Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).