Aliexpress
Click here… to search for Nitecore HC30 NW Headlamp 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 (46.96 USD): cbrIDgTec
Coupon (46.96 USD): m4x2020
(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): MNC03, 365fb8, CFNKL, CFCBG
(these coupons are old, so probably won’t work)
Price history and price alert
Price history (for all/most countries) for Nitecore HC30 NW Headlamp is here.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).