Electrical characteristics: Input voltage: 100-240v ac (90-264v ac) Input current: 0.5a max Frequency: 50/60hz (47-63hz) Output voltage: 3.0-30v Output current: 0.1-2.0a No-load power consumption: 0.1w max Efficiency: 70% min Ripple and noises: 50-180mv Line regulation: ±1% Load regulation: ±5% Output protections: Short circuit protection Over-voltage protection Over-current protection Environmental characteristics: Hi-pot test: 3750v ac, 60s, 5ma max Insulation resistance: 100mî© min Leakage current: 0.25ma max Operating temperature: 0 to 40°c Storage humidity: 5 to 95% rh Burn-in test: rate load, 40 ±5°c, 4 hours Emc standards: en55022 class-b/fcc part 15 class-b En55024/a1:2001/en61000