6X24V to 12V 30A Car Supply Transformer Converter Truck Bus DVD Audio. 6XMade of high quality aluminum alloy shell, high strength and durable to use. Allows you to convert DC 24V voltage to DC 12V voltage. Built-in multiple protection including overload, overheat and short circuit protection. Quick heat dissipation through aluminum housing. Super capacitor, voltage and current more stable. Output Voltage: 12V Input Voltage: 24V-30V Output Current: 30A Rated Power: 240W Material:Aluminum alloy colour:Black Package Contents: 1 Car Power Supply Transformer.