Aliexpress
Click here… to search for Sofirn SD03 XM-L2 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.
Link: Banggood product page
Coupon (23.11 USD): F7BG
Coupon (23.11 USD): fInbG2020
Coupon (23.95 USD): BGff2020
Coupon (24.80 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): a880ca, BGSD03, 8fbade
(there’s a little possibility that old coupon will work)
Price history and price alert
Do you need price history chart (for all/most countries) for Sofirn SD03 XM-L2 Diving Flashlight? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).