Daygreen 24V to 12V 13.8V Power Buck Module Car Step Down DC DC Converter Voltage Regulator Reducer (24V to 13.8V 100A 1380W)

Wiring: INPUT+ to BAT+, INPUT- to BAT-, OUTPUT+ to LOAD+, OUTPUT- to LOAD- Reminder: Never reverse the polarity. Use the enough big cable to avoid the voltage drop. Never connect to solar panel or wind turbine. Never charge the battery. Daygreen P/N: B40-24-12AEfficiency: 95% Input Voltage: 21-35VDC Output Voltage: 12VDC Output Current: 40A Ripple: 200mVp Line Regulation: ±0.2% Load Regulation: ±0.2% Voltage Accuracy: ±1.5% Enclosures: IP68 Dimension: 100*80*40mm Net Weight: 0.5kg Case Operating Temperature: -40~85°C Certificates: CE Rohs Warranty: 1 year1 MTBF: 100,000 hours Application: 24V DC battery of vehicles as input power to 12VDC appliances as output load. QuestionsHow to choose the correct current for loads? For example, if the max current of your load device is 10A, then choose 10A/0.7=14.28A at least for resistive loads according to international standard. If the load device is motor or compressor, then you may choose 10A/0.5=20A according to real testing result since the motor and compressor starting current may be 2-3 times than nominal current.

• 100% full rated power and stable output voltage
• 100% burn-in test and 4 times quality inspection
• Over current protection, Over voltage protection, Over temperature shutdown, Fuse built
• Aluminium shell with epoxy potting and waterproof IP68
• High efficiency up to 97%