Battery 18650 Li-ion battery, Lens Glass with anti-reflective coating, Size 90x52x248.7mm, Waterproof IP68 / underwater 2m, Body Aluminum with Type III hard-coat anodizing, Lumens 7500LM, Weight 859g, Brand Lumintop.
Just check coupons out (with price alert and history). 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 coupon and price update (UTC):
Banggood
Banggood warehouse is located in China. There is one coupon available! Pretty cool, huh?
Link: Banggood product page
1. ($264.59): BGALL8
apply it 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): BGLMTB, FIN1405, BGwhielabel, BGflashlight, BG10OFFAFF1, BGLMSD90, BANGGOODSD, 6GSGIT, BGTorch4
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
Do you need price history chart (for all/most countries) for Lumintop SD90 SBT90.2 Flashlight? There we go. The lowest price was: $185.
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)).