DC 24V Down to DC 12V: Input Voltage: 24V nominal, Input Current: 20A (max) ; Output Voltage: DC 12V 20A 240W 95% conversion efficiency: Synchronization rectification technology-multiple intelligent protection function with high conversion efficiency and stability. Maximum Efficiency:95%; Ripple Wave: 50Mv; Starting delay time:2S. Additional upgraded fuse protection and convenient end clamp design IP67 Waterproof: Aluminum shell and silicone sealed design: Waterproof, Anti-shock, Anti-humidity and Dust-proof, more durable and better heat dissipation. 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 No-Worry: These voltage converters are excellent power transformers, can work safely and reliable in -40°C~80°C range. We promise 30 days money