Waterproof Level: IP68, moisture-proof and anti-shock protection. Built-in smart chip provides full protection against over-voltage, under-voltage, over-current, overload, over-temperature, and short circuit. Improved heat dissipation with upgraded fin-type heat sink and internal thick aluminum plate for efficient thermal management. Durable and safe construction with die-cast aluminum shell and high-quality design. 96% conversion efficiency achieved through synchronous rectification technology, offering multiple intelligent protection functions with high efficiency and stability. Color: Silver. Material: Metal. Size: 7.4 x 7.4 x 3 cm. Package includes: 1 x DC 48-12V 20A Voltage Converter. No other items included. Note: Due to lighting and display differences, the item color may vary slightly from the actual product. Measurement error allowed is +/- 1-3 cm.