Aliexpress
Click here… to search for USB 60 Patterns LED RGB Laser Stage Light [EU] on Aliexpress
Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I can’t tell you if this price is good – not enough records in my database, so I won’t judge.
Link: Banggood product page
Coupon (21.85 USD): tRaDetRaCKeR
Coupon (21.85 USD): 8wEbgaInS5
Coupon (22.09 USD): 2203ActiesNL
(CouponsFromChina.com tip: you should apply the coupon 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): BGLED2203, MVC8SPRING, 8BGwbg2204
(these codes were not working in latest coupon update, but you can check them out anyway)
Price history and price alert
There is only one database record (it was for 20.9 USD), so you can’t see price history chart.
You can set price alert (for Banggood).