Aliexpress
Click here… to search for XANES 30W LED COB Outdoor IP65 Light on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (15.29 USD): BG2bb7a1
Coupon (16.55 USD): tRaDetRaCKeR
Coupon (16.55 USD): 8wEbgaInS5
Coupon (16.73 USD): 2203ActiesNL
Coupon (16.91 USD): BG00c906
(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): BGYD120, BRANDXS, BGXXANES, BG785HJ, 21322a, BGCAMP01, f4fab6, BGODFN1, BGZPBC15, BGTY704CP, BGCuponation10, BGHONEY2110, BG10OFFAFF, BGwhielabel, 13f142, BG10OFFAFF1, BG4d9120, BGAlerabatod, BG9e204e, 00c906, BGe46870, BGSMART231, BG7280ff, BG1efeb0, BG36e006, MVC8SPRING, 8BGwbg2204
(I don’t think these’re gonna work, but you can try ’em out anyway)
Price history and price alert
Here is price history (for all/most countries) for XANES 30W LED COB Outdoor IP65 Light.
Price records source(s): Banggood
Click on image to enlarge. 
You can set price alert (for Banggood).