You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
, Max runtime 66 Hour, Charging indicator Breathing blue is in charge, Weight 0.52oz/14.8g, Dimensions Ø0.61” (15.6mm)x L2.38” (60.5mm), Charging time 90 minutes (500mA/5V), Beam distance 109 meters, Battery 330mAh lithium polymer rechargeable, Recharge Micro USB, Model A7x, solid blue is fully charged
Aliexpress
I could not find it 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. We have found one coupon for this product!
Link: Banggood product page
1. ($43.69): BGTorch4
you should apply the coupon 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): BgcLuBofErtA10, BGRV, 4BLF, BG10OFFAFF1, BANGGOODSD
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for ROVYVON Aurora A7x GITD XP-G3/UV Keychain 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)).