Latest update shows that TX8 Nichia 219D 800lm Flashlight costs 13.72 USD (in Banggood). You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Latest coupon and price update (UTC):
Banggood (13.72 USD)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. But wait a sec… Is it a good price? Well, according to CouponsFromChina database this price is the best in history (8 records).
Link: Banggood product page
Price: 13.72 USD
13.72 USD – This is the best price ever noted in my database!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k
Old coupons (from the oldest to the newest): BG47f57d, BGNPXT8, FIN4406, BG589b2e, BGd57765
(I don’t think these’re gonna work, but you can try ’em out anyway)
Aliexpress
Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for TX8 Nichia 219D 800lm Flashlight? There we go.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).