Does Ac 120v for ul and cul ac110 240v for other means dual voltage?

Yes, AC 120V for UL (Underwriters Laboratories) indicates compliance with safety standards for devices operating at that voltage. Meanwhile, AC 110-240V for CUL (Canadian Underwriters Laboratories) suggests that the device can operate across a range of voltages, typically considered dual voltage. This means that the appliance can safely function in both 110V and 240V environments, making it versatile for international use.