Just check coupons out (with price alert and history). What is the best price?
Button Light-transmitting rubber, Driver Texas Avenger FET driver, Light intensity 300m range 234000cd, Lens Glass reflective coating, Weight About 30 grams without batteries, Waterproof rating IPX8 / 2 meters underwater, Lumen 450 lumens, Color “Titanium is in stock
(Sandblasted and Stonewashed color are out of stock)”, Dimensions 52.5 * 24 * 14mm, Light cup 20.8mm inner diameter / aluminum / smooth surface, Material Titanium alloy (natural color / sandblasting / stone wash optional), Firmware Tom E’s open-source GPL NarsiLM vl.3, Battery One tip 10180 battery (built-in)
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.
Link: Banggood product page
1. ($61.47): FIN2222
2. ($62.99): BGGTNO
3. ($78.44): BGAlerabat15
4. ($78.44): BGtorch7
5. ($83.05): BGtorch2
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): BGwhielabel, 4BLF, BG10OFFAFF1, BANGGOODSD, BGTorch4, 00c906, BGtorch3
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Price history (for all/most countries) for Lumintop GT NANO Titanium Alloy Flashlight is here.
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)).