9 High-frequency switching power supplies; Inverters for power supply; Low-voltage power supplies; Power adapters; Power controllers; Power switches; Uninterruptible electrical power supplies; Voltage regulators; Voltage stabilizers; Voltage stabilizing power supply
The mark consists of the wording "NVVV" in stylized format.. Color is not claimed as a feature of the mark. The wording "NVVV" has no meaning in a foreign language.