You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Kit model: HBL-22, Working voltage: DC4–6V, Color: Red Green Blue White Color Optional, PCB size: 50.7x 50.7mm, Package weight: 23g, Speed adjustable
Aliexpress
I could not find it on Aliexpress. Click here to search by yourself.
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
1. ($7.51): Terence
2. ($7.59): BG00c906
apply it in your cart after clicking “Proceed to checkout”. Click to copy code and open shop)
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): AFfbG10, BGAFF10OFF, BGTT10, bGhOnEy10, BGdragonBoat, BGSS10%SW, BG12KIT, BGELIG0920, BgcLuBofErtA10, BG11SCM, BGRUMB15, BG15DIY, BGHONEY2110, BGd0b05d, 00c906, ADMITAD2212, 2022ACTIESNL
(you can check these old coupons out, but these probably won’t work)
Price history and price alert
Price history (for all/most countries) for EQKIT Heart Shaped Light Kit DIY LED is here.
Price records source(s): Banggood
Click on image to enlarge. 
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)).