Crystal lamp manufactured with dual USB port, making the charging method more convenient for you. With the 5-Volt/2.1 Amp output of the USB port, the lamp makes sure that your USB-powered electronics safely charge with compatible output.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness.