Aliexpress
Click here… to search for ARCHON D11V-II Diving Flashlight on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. There is one coupon right now! Check this out.
Link: Banggood product page
Coupon (56.45 USD): BGTORCH
(CouponsFromChina.com tip: coupon code has to be applied in shop’s 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): BGD11V, linepayflt, EYBG, 502C6B, BGBFCR41
(probably won’t work, but you can try them out)
Price history and price alert
Price history (for all/most countries) for ARCHON D11V-II Diving Flashlight is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).