Features:   Environmental: • Maintenance-free batteries • Consumes 66% less power • Contains 80% less lead • Sealed batteries will not leak or spill • Decreased charging time saves energy and downtime • Reduced battery weight saves fuel • Manufacturing process emits near-zero VOCs • Nearly every component can be recycled Functional: • High-output amber LEDs legible up to 1 mile • Self-contained power supply • No need to run vehicle engine to operate arrow board • Controller with 30-foot cable • Automatic dimming further conserves power • 50-watt solar charging system • Flashing rate of 30-40 per minute • Durable powder-coat finish resists the elements • Meets MUTCD • NTPEP tested Lamp Options: 15 lamps with 7 arrow display modes 25 lamps with 12 arrow display modes Weight: 320 lbs