Made 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 Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.