Aliexpress
Click here… to search for EQKIT Heart Shaped Light Kit DIY LED on Aliexpress
Here are coupons that you can use.
Latest coupon and price update (UTC):
Banggood
Banggood warehouse is located in China.
Link: Banggood product page
Coupon (7.51 USD): Terence
Coupon (7.59 USD): BG00c906
(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): AFfbG10, BGAFF10OFF, BGTT10, bGhOnEy10, BGdragonBoat, BGSS10%SW, BG12KIT, BGELIG0920, BgcLuBofErtA10, BG11SCM, BGRUMB15, BG15DIY, BGHONEY2110, BGd0b05d, 00c906, ADMITAD2212, 2022ACTIESNL
(probably won’t work, but you can try them out)
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).