The PWM-120 power supply is a constant voltage 120W AC / DC LED driver with PWM output and input voltage ranging from 90 to 305VAC . Nominal output voltage of 24 volt. Thanks to the high efficiency up to 90.5% and the high silence (it has no fan), the whole series is able to operate in case temperatures ranging from -40 ° C to +90 ° C. The power supply has an IP67 degree of protection and is suitable for working in both dry and humid or wet places. The PWM-120 is equipped with an output voltage regulation function, providing great flexibility for LED applications. DALI and DALl-2 dimming control technology .