1.Product features Small volume, convenient assembly Low loss, high efficiency Low noise, low temperature rise Stable performance, Long life 2.Technical index Rated Voltage:220v by one phase (can be customized) Operating frequency: 50HZ-60HZ Dielectric Strength:2000V 1 minute without breakdown fox 3.Scope of application Instrument of temperature controller with electrical control system The sound system supporting power supply system 4.Conditions of use 1) Working temperature:-15℃ - +40℃ 2) Working humidity:≤85%