Power: 1W (Per Module), Material: PP+LED Light+Alloy, Size: Per Module: 10cm (Corner to Corner / Not Edge), Color: RGB Colorful(Random Color).
Price history, coupons and price alert are available on this page. You probably want to know what is the best price?
Aliexpress
There’re some similar (or not) items on Aliexpress
You can use link bot to get even lower price:
Click here to search by yourself. Here are coupons that you can use.
Latest coupon code price check (UTC time):
Banggood
Banggood warehouse is located in Europe 
. I don’t really know if this price is reasonable, coz there’s no price history in my DB. I found coupon for you. Check this out.
Link: Banggood product page
1. ($45.04): Cuponation9
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop.
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BGbc4186, tRaDetRaCKeR, 8wEbgaInS5, BGf8663c, pROMo8cuPoN, BGf94f14, BGLED2206, BG7aece1, BGJULY106, BGHU2342, 9OFFSUMMER, BGade8d0, BGLED07, BG8ReviTrage, BGccec78, BGLEDNOV2022, BG31ad44, TTBLACK5
(these coupons are old, so probably won’t work)
Other warehouses/versions
This item is available in 1 another warehouse/version!
1. China – LED RGB Colorful Night Quantum Modular Lamp 10pcs ($-3)
Price history and price alert
There is only one database record (it was for $33.88), so you can’t see price history chart.
You can set price alert (for Banggood and Aliexpress (only if product name will be the same as on Banggood and I will post it on social media though, so it’s more like Banggood price alert)).