Aliexpress
Click here… to search for WUBEN T1 SST40 2000lm Flashlight on Aliexpress
Here are coupons that you can use.
Latest price update (UTC time):
Banggood
Banggood warehouse is located in China. Well, there is one coupon available right now.
Link: Banggood product page
Coupon (91.07 USD): BGAUGUST8
(CouponsFromChina.com tip: this code has to be applied in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BGtorch3, BGWBT1, FIN1309, BGAlerabat15, F33774, BGtorch7, BGtorch2, BGAlerabatI, BGOutlight10, BG589b2e, BGMARCHSALE, BGBLF14
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for WUBEN T1 SST40 2000lm Flashlight.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).