Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China. I found coupon for you. Check this out.
Link: Banggood product page
Coupon (34.36 USD): Terence
(CouponsFromChina.com tip: just apply this code 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): 502C6B, e2bcea, BRANDXS, brandxs, 362f27, BGXXANES, BGCuponation10, 13f142, BGHONEY2110, BG10OFFAFF, BGwhielabel, BG10OFFAFF1, BG4d9120, 00c906
(these coupons are old, so probably won’t work)
Price history and price alert
Check out price history chart (for all/most countries) for XANES DL07 Bicycle Front Light.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).