You can create price alert here, copy coupons and view price history. Let’s see what best price is ATM.
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):
Color Silver, Model MF01X, Name Astrolux® MF01X 18x SFQ43 21000LM 871M Flashlight
Banggood
Banggood warehouse is located in China. You can get coupon down below.
Link: Banggood product page
1. ($142.55): BGAUGUST8
apply it 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): BGtorch9, FIN6952, F43370, BG7f8547, BG8Alerabat, BGLED07, BGOutlight10, BGMARCHSALE, BG589b2e
(there’s a little possibility that old coupon will work)
Price history and price alert
Here is price history (for all/most countries) for Astrolux MF01X 18x SFQ43 21000lm Silver Flashlight with Batteries.
Price records source(s): 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)).