Taxi Top LED Light Scrolling Message Sign 16X128 Pixels. 3-Year Free Warranty: Comprehensive free warranty coverage for 3 years to ensure long-term reliability. High Brightness LED Chip: Uses Taiwan Epistar 12mil LED chips for high brightness, low heat, and long lifespan. Auto Brightness Control: Automatically adjusts brightness to save energy and extend the display's service life. Easy USB Operation: Messages updated via USB flash drive; drivers can select stored routes via buttons. Customizable Fonts: Supports self-defined English and Spanish fonts, designed for Africa and South America. Competitive Pricing: Self-developed software and hardware allow for highly competitive pricing. OEM Service Available: Factory supports OEM services; customers can provide ideas for custom displays. Wide Voltage Range: Operates on DC9V~24V with over-voltage and antistatic protection features.