Basically copy coupon, view price history or create e-mail price alert. Best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Charging Type-c, Weight 77G, Voltage 5V/1A, Battery Built-in NMC lithium battery, Lumen 14-250LM, Material ABS+PC, Battery 3.7v 2600mA, Mode/Gears High-low-flashlight, Run time 7-170h, Size 38*90mm, Lamp beads LED, Power 5W, Model Type C, Waterproof IPX4, Color temperature 3800K, Product name Camping light
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($26.39): BG925e08
2. ($27.29): Cuponation9
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 and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG2bb7a1, BG5d2ea4, BGfef5e8
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Check out price history chart (for all/most countries) for Naturehike BLACKDOG Camping Light.
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)).