Lumintop GT NANO Copper Flashlight (Banggood, Aliexpress: Throw 300meters & 23400cd, Body Red Brass / Yellow Copper, Dimensions 24mm*52.5mm(length), Reflector 20.8mm ID /aluminum / smooth finish, Lens Glass with anti-reflective coating, Driver Texas Avenger FET driver, Weight 49g(for brass) / 52g (for Copper), Battery One Button-top 10180 Li-ion(included), Flux 450 lm (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
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.
Link: Banggood product page
1. ($55.11): BG8Alerabat
2. ($55.11): BGOutlight10
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/feV
Old coupons (from the oldest to the newest): FIN1292, BGLMTB, cbrIDgTec, BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch2, BGtorch3, BGAlerabat15, BGtorch7, FIN0723, BGAlerabatI, BGtorch9, BGLED07
(there’s a little possibility that old coupon will work)
Price history and price alert
Price history (for all/most countries) for Lumintop GT NANO Copper Flashlight is here. The lowest price was: $39.99.
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)).