Just check coupons out (with price alert and history). What is best price?
2.5lumens(900mah battery), Switch Location: body side of the flashlight, Light Color: Cool white, Lumens: 60lumens, Weight: 9g, Lens: GITD Lens, Range: under 50meters, 90-CRI, Model: Tiny AAA/10440, Runtime: 1.5-60h, Reflector: PMMA reflector, Neutral white, Material: Titanium Alloy, Color: silver, Battery Configurations: 1x AAA/10440 battery (not included), Mode: High, Switch Type: rotation, Emitter Type: XP-G2, Low
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. I’m afraid that there’s no working coupon in Banggood.
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): BGDQG6, ECFKL, BGTORCH, bGhOnEy10, bgshOOp10, BgoFErTaSchInA10, BgcLuBofErtA10, BGFLS15, 4BLF, BGAFF10OFF, BGCuponation10, BG10OFFAFF, BGwhielabel, BGflashlight, BG10OFFAFF1, BANGGOODSD, 6GSGIT, BGTorch4, 00c906, BGtorch2, BGtorch3, BGAlerabat15, BGtorch7, BGAlerabatI
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Here is price history (for all/most countries) for DQG XP-G2 Tiny AAA Titanium Flashlight.
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)).