You can create price alert here, copy coupons and view price history. What is 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 coupon and price update (UTC):
Item LED Flashlight, Material Plastic, Body Color Green /Yellow /Black, Light Color White, Battery Type Lithium ion, LED Lifespan 100 /000 Hours
Banggood
Banggood warehouse is located in Europe 
. There are no coupons for this product in Banggood. I can’t tell you if this price is good – not enough records in my database, so I won’t judge.
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGtorch2, BGf94f14, BGtorch8, BGAlerabatI, BG00c906, BGtorch9, Cuponation9, BG8Alerabat, 9OFFSUMMER, BGLED07, BGOutlight10, BG589b2e, BGcharles03
(system checks these coupons on every price check (like once per 24 hours), but you can check them out anyway)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Portable LED Flashlight with Hand Crank Solar Power ($-3)
Price history and price alert
Well, you won’t see price history chart, coz we have only 1 database record for this item (and price was $8.25).
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)).