Waterproof Level: IP68, moisture-proof & anti-shock protection. Safer performance: Built-in smart chip provides protection against over-voltage, under-voltage, over-current, overload, over-temperature, and short circuit. Improved heat dissipation: Upgraded fin-type heat sink with thick aluminum plate inside fixture for efficient heat dissipation and long life. Sturdy and safe construction: Die-cast aluminum shell with high-quality design. 96% conversion efficiency: Synchronous rectification technology with multiple intelligent protection functions for high efficiency and stability. Color: Silver Material: Metal Size: 7.4 x 7.4 x 3 cm Package Contents: 1 x DC 48-12V 20A Voltage Converter Note: Other items not included. Light and display differences may cause slight color variation between image and actual item. Measurement error allowed within +/- 1-3 cm.