DC 40V-90V to 12V Converter Voltage Regulator Reducer 48V 60V 72V Step Down to 12V 30A 360W Converter Waterproof Buck Transformer Power Supply for Golf Cart Club Car LED Light

Aluminum shell and silicone sealed design: Waterproof, Anti-shock, Anti-humidity and Dust-proof, more durable.
Wide application: Large trucks, Golf cart, Club car, taxi radio, emu, car audio, LCD TV, advertising screen, LED strip lights, monitoring system, electronic systems and DIY etc.

Wiring: OUTPUT+ to LOAD+, OUTPUT- to LOAD-; INPUT+ to BAT+, INPUT- to BAT-
Note:
* Never connect to solar panel, PWM/MPPT charge controller, inverter or wind turbine.
* Never use for charge. Keep good air convection.
* Never reverse the polarity.
* Use the enough big cable to avoid the voltage drop.

Specifications

:
Input Voltage Range: 8V-40V DC
Output Voltage: DC12V 10A
Output Rated Power: 120W
Efficiency: 97% (half load); 95% (full load)
Ripple: 200mVp
Line Regulation: ± 0.2 %
Load Regulation: ± 0.2 %
Voltage Accuracy: ± 1.5 %
Enclosures: IP68
Case Operating Temperature: -40~85°C
Weight: 380g
Features:
1. 100% full power and stable current output, non-isolated module.

2. Industry grade DC 8V-40V to DC 12V step down/up converter, efficiency up to 95%.

3. Die-cast aluminum shell, epoxy potting, cooling by free air convection; Waterproof level IP68 and anti-shock protection.

4.
Protections: Over-current, Over-voltage, Over-temperature, Over-load and Short-circuit, auto-recovery when device is back to normal operating.

5.
Certificates: CE/RoHS, 1 year warranty, lifetime up to 100, 000 hours.
Package included:
1 x DC 8V/40V to12V 10A Converter
Questions:
How to choose the correct current for loads?
For example, if the max current of your load device is 10A, then choose 10A/ 0.8 = 12.5A 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.