Aliexpress
Click here… to search for Lumintop ODF30 Flashlight on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (49.99 USD): MLHG3
Coupon (52.42 USD): CFNKL
Coupon (55.92 USD): BRANDLMT
Coupon (55.92 USD): brandLMT
(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
Price history and price alert
Price history (for all/most countries) for Lumintop ODF30 Flashlight is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).