More :built in smart chip, full protection against over/under voltage input, over-current, overload, overhead, over-temperature and short circuit. Better Heat Dissipation:Upgraded fin type heat sink with a thick aluminum plate inside fixture to help to dissipate heat more efficiently.. Sturdy and Safe materials:die-cast aluminum shell and high quality design. Waterproof Level upgrade:IP68,moisture-proof & anti-shock protection. 96% conversion efficiency:Synchronization rectification technology-multiple intelligent protection function with high conversion efficiency and stability., Weight: 0.61288508836 pounds, Manufacturer: Kueohse