I have just checked coupons. The lowest price I could get is $14.99 for 72LED One For Four Car Interior Ambient Foot Strip Light (in Banggood). Just check coupons out (with price alert and history). You probably want to know what is the best price?
72LED One For Four Car Interior Ambient Foot Strip Light Backlight Remote App Music Control RGB Decorative Lamps
Latest coupon and price update (UTC):
Banggood ($14.99)
Banggood warehouse is located in China. I couldn’t find any coupon for this product on latest product update. Is it a reasonable price for this item? This price is great, coz it’s the lowest in CouponsFromChina database!
Link: Banggood product page
Price: $14.99
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): BGAMMT03
(probably won’t work, but you can try them out)
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Price history and price alert
Do you need price history chart (for all/most countries) for 72LED One For Four Car Interior Ambient Foot Strip Light? There we go.
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)).