Just check coupons out (with price alert and history). What is the best price?
CREE XHP35 HD E3, 1800 lm, 6500-7000K, Battery Quantity: 1x 18650; 2x CR123A, Memory mode, IPX-8
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. We have found one coupon for this product!
Link: Banggood product page
1. ($56.67): BGTBD
this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): MConcept1, EYBG, BGTORCH, BRANDNC, bGhOnEy10
(these coupons are old, so probably won’t work)
Price history and price alert
Do you need price history chart (for all/most countries) for Nitecore C1 Concept 1 Flashlight? There we go.
Price records source(s): Gearbest, Banggood
Click on image to enlarge. 
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).