IPX-8 waterproof 2 meters, XHP70, 2x 26650 6A protected battery(not included), 200-500meters, 3800LM.
Basically copy coupon, view price history or create e-mail price alert. What is the 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 coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($50.06): AC18
2. ($50.06): m4x2020
3. ($50.06): BGCONVOYSS
4. ($51.31): F7BG
5. ($51.31): fInbG2020
6. ($53.18): BGff2020
7. ($56.31): CFCBG
just apply this code in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): a60080, BGL6, BGCL6, M4BG, 2019FG, cbrIDgTec
(there’s a little possibility that old coupon will work)
Other warehouses/versions
This item is available in 2 another warehouse/versions!
1. China – Convoy L6 N4-1C 6000-6500K Flashlight Black ($-3)
2. China – Convoy L6 N2-3A 5000K Flashlight Black ($-3)
Price history and price alert
Price history (for all/most countries) for Convoy L6 N4-5C 4000K Flashlight Black is here. The lowest price was: $41.34.
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)).