DC 36V/48V to DC 12V -- Input voltage range: DC 30-60V ( 36V/ 48V); Output voltage: DC 12V (Fixed Output); Output current: 20A; Output power: 240W 96% conversion efficiency-- Synchronization rectification technology-multiple intelligent protection function with high conversion efficiency and stability. Starting delay time:2S. Additional upgraded fuse protection and convenient end clamp design Wide application-- Smart chip provide Over-load/ Over-current/ Over-temperature/ Short-circuit/ Over-voltage protection. It can be used for trucks, taxi radio, emu, car audio, LCD TV, advertising screen, LED strip lights, monitoring system, motor, solar panel, electronic systems and DIY etc IP67 Waterproof-- Aluminum shell and silicone sealed design: Waterproof, Anti-shock, Anti-humidity and Dust-proof, more durable No-Worry-- These voltage converters are excellent power transformers, can work safely and reliable in -40°C~80°C range. We promise 1 year replacement assurance, lifetime