Description: Input voltage: 5V-60V (the continuous highest 55V) Output voltage: (1.25V-26V) continuous adjustable (Suggest no-load debugging) Input frenquency:150KHz Output current: rated current 2A, 3A(MAX) (need to plug heatsink), if the output power is higher than 20W, advise to add the heatsink. Conversion efficiency: highest 92% (higher output voltage, higher efficiency) Power: not adding heat sink