ATM you can buy Jetbeam M37 3000lm Flashlight for $49.81 (in Banggood). Basically copy coupon, view price history or create e-mail price alert. You probably want to know what is the best price?
Jetbeam M37 3000 Lumen Professional LED Tactical Flashlight Outdoor Waterproof Strong Light LED Torch 340 Meters Search Lamp – Black
Latest coupon and price update (UTC):
Banggood ($49.81)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Is it expensive? Well, this price is higher than average price ($49.01)
Link: Banggood product page
Price: $49.81
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BG1111B35, BGcharles03, BGd57765
(these coupons are old, so probably won’t work)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Price history (for all/most countries) for Jetbeam M37 3000lm Flashlight is here.
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)).