Product specs: 90-240V, 50-60HZ input; 0.3-68W & 3-18V (±0.1V) output; 0-2A (±0.1A) current; overload protections; ±1% ripple allowance; 5°C-40°C temp, 30%-75% humidity & 900-1060 hpa air pressure. It's designed to guarantee a stable, reliable performance in any environment, so you can have peace of mind knowing that your device is safe and secure.