Just check coupons out (with price alert and history). Let’s see what best price is ATM.
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):
IP65 waterproof rating allows you to use it even on rainy days, warm white, blue, 5 lighting colors available: cool white, Powered by 3x AA battery (not included), green, red, The length of string light: 5m
Price history and price alert
Here is price history (for all/most countries) for Utorch 5m 50-LED Decoration String Light Red.
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)).