Aluminum shell and high quality design, maximum transfer efficiency of 96%.Built-in full protection against over/under voltage input, over-current, overload, overhead, over-temperature and short circuitAuto-recovery when device is back to normal operatingWaterproof, moisture-proof & anti-shock protectionIndustry grade DC 24V to 12V step-down converter, widely used in automotive, electricity, surveillance systems, railway signals, instruments, solar generate electricity, display screen of bus and taxi, car audio device, security systems, hospital equipment, telecommunications etcSpecification:1Input voltage: 13V-40V2Limit input voltage: less than 40V3Input Current: more than 10A4Working Temperature: -20 ~+705Output current: 30A6Maximum : 360wcolour: silverMaterial: aluminumSize: 100x104x40mmPackage Contents:1 x DC 24V to 12V step-down converterOnly 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.