1. Supports DC11-27V wide voltage input, supports both in car and battery. 2. Easy to use, output voltage Vin~50V, continuously adjustable. 3. Equipped with a voltmeter display, thickened heat sink, temperature controlled air cooling, and sustainable operation. 4. Special inductance for digital power amplifier, special magnetic shielding structure, reducing noise and resisting electromagnetic interference; Ultra large rated current, low magnetic loss, low DC resistance, low noise, and usable audio power amplifier. 5. Eight 1000UF capacitors with sufficient capacity, paired with low filter capacitors, provide stable performance. Power supply voltage: DC11-27V, unstable output voltage above 27V Output voltage: Vin~50V Output power: 500W Working current: 67mA @ (Vin=12V, Vout=36V) 80mA @ (Vin=12v, Vout=48V) 42mA @ (Vin=20V, Vout=36V) 50mA @ (Vin=20V, Vout=48V) Conversion efficiency: 92% -95% Temperature controlled fan rotation conditions: Just after powering on, it automatically run a 2-second self check and then stop. During operation, if the board temperature reaches 36 ℃ or above, the fan rotate, otherwise the fan stop. Module size: 122x92x39mm Color: As Shown Material: plastic Package Contents: 1 * Voltage Regulator Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.