Reverse polarity protection None /The positive side of the battery should be facing the head, Low voltage warning Automatic power off, Packing size 183 * 99 * 80mm, Tail stand Yes, Switch position Side button in the head, Mode memory Yes, Lens Type Ar-coated glass lens, Battery type required 4*18650 batteries, Tc Tc, (protected or unprotected), Flashlight length 153mm, Head diameter 69mm, Batteryincluded or not Not included, Luminous flux Maximum 5400LM (theoretical LED output value / the actual light output is lossy / for reference only, Product weight 458g, Material Aluminum alloy, Illumination Illumination, Charging TYPE-C charging interface (charging current 3A), Reflector Smooth, Battery tubediameter 50mm, Range Maximum 1122 meters (ANSI standard / for reference only), Weight with box 592g.
You can create price alert here, copy coupons and view price history. You probably want to know 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 price update (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
1. ($76.28): BGOutlight10
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): BGCONV, FIN9345, BGC18A, BGCV4X18A, BGflashlight, FSH7299, BGdeals37, BGdeals59, cbrIDgTec, BG10OFFAFF1, BGdeals110, BANGGOODSD, BGTorch4, BGdeals228, 00c906, BGtorch3, FIN4593, BGAlerabat15, BGtorch7, BGtorch5, BGtorch2, BGAlerabatI, BG8Alerabat, BGba1c84, BGLED07
(probably won’t work, but you can try them out)
Price history and price alert
Here is price history (for all/most countries) for Convoy 4X18A SBT90.2 Flashlight. The lowest price was: $66.72.
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)).