Output Power: 40 Watt Line Regulation: ±2% Load Regulation: ±1% Ripple: 3.3S: 50mV (Vp-p) / others: 1% Vout Noise: 3.3S: 50mV (Vp-p) / others: 1% Vout Short Circuit Protection: hiccup mode, auto recovery Efficiency: 75%~83% Switching Frequency: 132K Hz Isolation Voltage: 3000 VAC Operating Temperature: -25°C~ +70°C (case temperature max: +95°C) Case material: Plastic Resin with Fiberglass (UL 94V-0)