Basically copy coupon, view price history or create e-mail price alert. Do you want to know what the best price is?
LED: 60x SMD3528 (green / blue / pink each for 20), Led lifespan: more than 50000H, Length: 2M (6.56 ft), Input voltage: 4.5V, Power rating: 0.68W, Waterproof standard: IP65, Operating temperature: -20 Deg.C – 65 Deg.C, Battery requirement: 3x AA battery (not included)
Aliexpress
I could not find it 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
Do you need price history chart (for all/most countries) for Zanflare BT-KU-3528AD-30D-PGB 2m LED Strip? There we go.
Price records source(s): Gearbest
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)).