$15.99 – 1IN1 2M RGB LED Atmosphere Car Interior Ambient Light Fiber Optic Strips Light by App Control Neon LED Auto Decorative Lamp.
You can get 2m RGB LED Atmosphere Car Interior Ambient Light for $15.99 with coupon (from Banggood). Basically copy coupon, view price history or create e-mail price alert. What is best price?
Latest coupon code price check (UTC time):
Banggood ($15.99)
Banggood warehouse is located in China. So I have checked for active coupons (all category coupons and old ones), but there was no working coupon in Banggood. But wait a sec… Is it a good price? Maybe there’re no more promotions for this item, because current price is higher than average (which is equal $10.39)
Link: Banggood product page
Price: $15.99
Additional Banggood coupons: first page and second page
Old coupons (from the oldest to the newest): BG6a053e, BGCAR639, BGSCM11, BGAMMT03
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
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.
Price history and price alert
Here is price history (for all/most countries) for 2m RGB LED Atmosphere Car Interior Ambient Light. The lowest price was: $8.99.
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)).