Different condenser microphones specify different amounts of required phantom power. As a rule these ratings can range from 48 volts all the way down to 9 volts. Fortunately there is some flexibility in terms of matching phantom voltage to your mic.
•Single Channel +48V Phantom power supplier for Condenser Mic
•Special regulator IC prevent damage or overheating from power shorting.
•Low noise and better sound performance design
•Power: AC 18V
•Regulated Output Voltage: 48V +/- 2V DC
•Short Circuit Output Current: 14mA
•Residual Output Noise: -71dBv
•Frequency Response: 10Hz ~ 25K Hz
•AC input: AC 18V
•Jack: Male and Female XLR jack
•Size: 127x 77x 40 mm