On The Road U16 XP-L V6 1A Flashlight (Banggood, Aliexpress: XP-L V6, 1A, 1020LM, 1x 16340/CR123A/RCR123 battery (not included), 4900cd, 140meters, IPX-6 waterproof (the best price with coupon)).
Basically copy coupon, view price history or create e-mail price alert. What is 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 price update (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($22.62): BG10OFFAFF
2. ($22.87): 4BLF
just apply this code 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): H, e2bcea, EYBG, HU16, BGTORCH, 502C6B, BGBFCR41, 0e7f33, BGFLS15, BGAFF10OFF, BGCuponation10
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Here is price history (for all/most countries) for On The Road U16 XP-L V6 1A Flashlight. The lowest price was: $20.14.
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)).