Just check coupons out (with price alert and history). You probably want to know what is the best price?
Emitter Use single LH351D LED, Flashlight body 6061 grade aluminum alloy, Battery Operation Single 14500 battery or single Alkaline or Nimh AA battery, Lens Toughened mineral glass lens, CNC manufactured to Military Grade hard-anodized., Size 88x 20mm, Working voltage 0.9V-4.2V
Aliexpress
There’re some similar (or not) items on Aliexpress
| Image | Product (link) | Price | Coupons |
|---|---|---|---|
 |
1PCS Sofirn Diffuser for C01S SP10S Q8, Sofirn SP32A SP31V2 SP32V2 SC31PRO FC11 SP36 series LED Flashlights | $4.73 | – |
Click here to search by yourself. Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
1. ($13.99): BGSF
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): EYBG, BGBSPX, BGSP10S, BGTORCH, 502C6B, BGBFCR41, fInbG2020, BGff2020
(probably won’t work, but you can try them out)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – Sofirn SP10S 90 CRI LH351D Flashlight Black ($-3)
Price history and price alert
Check out price history chart (for all/most countries) for Sofirn SP10S 90 CRI LH351D Flashlight Blue.
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)).