Basically copy coupon, view price history or create e-mail price alert. Best price?
300x SMD 3528 30W DC 12V 24 Keys Remote Controller
Aliexpress
There’re some similar (or not) items on Aliexpress
Click here to search by yourself. Here are coupons that you can use.
Latest price update (UTC time):
Price history and price alert
Price history (for all/most countries) for 2pcs HML 5M Waterproof RGB LED Strip Light is here.
Price records source(s): Gearbest
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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)).