You can create price alert here, copy coupons and view price history. You probably want to know what is the best price?
Input: DC 12 – 24V (Max 28V), Ambient temperature: -20 – 75 Deg.C, Output: DC 5.0V / 3.4A Max (Total), Type: Car charger, Constant pressure accuracy: ±2%, Power chip: IC HC2017, USB Ports: 2, Material: Aluminum alloy
Aliexpress
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Here are coupons that you can use.
Latest coupon and price update (UTC):
Price history and price alert
Here is price history (for all/most countries) for Tecney WMY-007 Dual Car Charger Black.
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)).