Working voltage 0.9V-4.2V, Lens Toughened mineral glass lens, Flashlight body 6061 grade aluminum alloy, Size 88x 20mm, CNC manufactured to Military Grade hard-anodized., Battery Operation Single 14500 battery or single Alkaline or Nimh AA battery, Emitter Use single LH351D LED.
Basically copy coupon, view price history or create e-mail price alert. Let’s see what best price is ATM.
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. I am tired of searching coupons, but I found one for you…
Link: Banggood product page
1. ($13.99): BGSF
coupon code has to be applied in shop’s cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): EYBG, BGBSPX, BGSP10S, BGTORCH, 502C6B, BGBFCR41, fInbG2020, BGff2020
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Sofirn SP10S 90 CRI LH351D Flashlight Blue ($-3)
Price history and price alert
Price history (for all/most countries) for Sofirn SP10S 90 CRI LH351D Flashlight Black is here. The lowest price was: $11.19.
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)).