Just check coupons out (with price alert and history). Do you want to know what the best price is?
Function: mobile phone APP control + infrared remote control, Size: 33*10CM/12.99*3.93in, Light source: main light source 2835 lamp beads / RGB light source 5050 lamp beads, Voltage: AC170-265V / AC85-265V, Material: Acrylic mask, Light color: positive white + warm white + RGB color light, Power: main light source 36W+RGB 8W+speaker 5W
Aliexpress
There’re some similar (or not) items on Aliexpress
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 China. As you can see I didn’t find any active coupon for this product right now…
Link: Banggood product page
Price: $-3
It looks like this item is out of stock in Banggood. If you found it then please send me the link. I will replace it.
Click here to search on Banggood!
Exclusive Allowance Coupons: https://bit.ly/3xWgD9k and https://couponsfromchina.com/short/5cd
Old coupons (from the oldest to the newest): 00c906, BG00c906, BGHUCJ41, 2022ACTIESNL, Terence, BGLED2203, MVC8SPRING, 8BGwbg2204, 2203ActiesNL, tRaDetRaCKeR, 8wEbgaInS5, pROMo8cuPoN, BGf94f14, BGLED2206, BG8ReviTrage, Cuponation9, BGLED07, BGOct22LED, BGLEDNOV2022, TTBLACK5, BG589b2e, BGSCHOOL8OFF, BGCAPITALOS8, BGCOUPERT8, BG8FORMULAMX
(sometimes old coupons work, so you can check them out (this site checks them on every price update))
Price history and price alert
Price history (for all/most countries) for 33cm 36W Bluetooth LED Ceiling Light 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)).