Features: Easy installation. Safe and secure, no water leak. MCU controlled energy saving circuit. Mini size, PWM test supported. Specification: Max Flow: 500L/h Max Lift: 3.5m Max Current: 0.5A Work Temperature: -10°C - 55°C Power Port: small 4pin Speed Test Connector: PWM Water Tank: NOT included Tube Connector: G1/4 Thread Water Inlet: G1/4 Thread Work Noise: 25dB Service Life: 50,000h Bearing: Full Ceramic Circuit: MCU controlled 3-phase DC brushless circuit Size: 63 x 63 x 35 mm / 2.48 x 2.48 x 1.38 inch Color: Black Material: Plastic Package Contents: 1 x Pump Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.