Features Excellent Aluminium Alloy Shell: This DC power supply converter transformer is made of excellent aluminium alloy shell, which is of high strength and durability. Heat Dissipation Hole Design: This power converter is designed with heat dissipation holes to improve flame resistance, toughness and strength, better heat conduction and dissipation, dustproof and shockproof. Multiple Protection: This car power supply converter transformer has multiple protection with built in overload, overheat, multi voltage and short circuit protection. Easy To Install: This car power supply converter is easy to install, you just need to connect the wires and then use the screws to fix it, no complicated tools are needed. Wide Application: This car truck electric inverter has a wide range of applications, it can be used in car stereo, intercom, LED, radio, taxi advertisement, surveillance system, vehicle monitor, trucks, buses. Specification: Item Type: DC Power Supply Converter Transformer Material: Aluminium Alloy Specification: 12V to 24V 20A Use: Suitable for car stereo, intercom, LED, radio, taxi advertising, monitoring system, car monitor, trucks, buses. Package List: 1 x DC Power Supply Converter Transformer Package List 1 x DC Power Supply Converter Transformer