【High-Efficiency Air Pump】 The NIP-30L is a solenoid air pump boasting an air flow rate of 30 liters per minute. It offers high efficiency and is suitable for various applications. 【Energy-Saving Design】 With a power consumption of only 33W, it helps to reduce electricity costs even with long hours of use. It's also an environmentally friendly design. 【Safety and Reliability】 It supports a rated voltage of 100V and frequencies of 50/60Hz, providing stable performance. Designed for outdoor use, it also offers excellent durability. - Model Number: NIP-30L - Voltage: 100V - Frequency: 50/60Hz - Power Consumption: 33W - Air Flow: 30L/min - Normal Pressure: 0.012MPa - Country of Manufacture: China I have only used it for 2 months after purchase, and it is very clean and I think it is relatively quiet. Of course, the operation is also completely problem-free. Thank you for viewing.