GDSTIME 2-Pack 50mm USB Fans 5V Brushless DC Cooling Fan for Projector Humidifier Aromatherapy Small Appliances Series Replacement

Product Description The small 50x50x10mm usb cooling fan designed to cool various electronics and ventilate DIY projects. such as projector, aroma diffuser, humidifier, beauty device, power supply, computer and other DIY projects. the fan can be powered by USB ports found behind popular electronics and on portable power banks. Specifications: Fan Size: 1.97 x 1.97 x 0.39 in. Mounting Hole Distance: 1.57 in. Start-up Voltage: 3.5V Rated Voltage: 5V DC Operating Voltage: 4V to 5.5V Rated Current: 0.18 Amp Operating Temperature: 14? to 175 ? Power: 0.9 W Fan Speed: 4500 RPM ±10% Airflow: 9.5 CFM Noise Level: 24.3 dBA Air Pressure: 0.08 In H?O Connector: USB Port Cable Length: 13.78 inch Bearing Type: Sleeve Life Span: 35,000 hours Net Weight: 27g / 0.95oz Package Contain: 2x 50mm usb fans 2x 50mm fan grills 8x Mounting screws & nuts