Inverter DC-DC CC CV Lowering Power Module Voltage 6-40 V Do 1,2-35 V Drive LED Ear: 12x8 cm/4.7x3 inches Type: synchronous rectifier, without insulation, voltage lowering, constant current, CC constant voltage module, CV charger module Input Voltage: 6-40VDC Output voltage: smooth adjustment (12-35VDC) Longer time less than 32V Output current: maximum 20A, long time within 15A (if the temperature of the supply pipe exceeds 65 degrees, add wentylator do cooling) - Inner mesh panties Current limitation range: 0,2-20A (adjustable) Operating frequency: 150 KHZ Conversion efficiency: up to 96% Output ripple: about 50mV Operating temperature:-10℃- 75℃ Potentiometers adjust direction: clockwise (increase), opposite do clockwise (decrease) Short circuit protection output: yes Protection against the reverse side of the entrance: NO Size: 10x10x5 cm/3,9x1.9 inch The package includes: 1 piece DC DC Converter Lowering Voltage Converter