Specifications: Material: ABS Rated voltage: DC3V or 4.5V (3-6V can work) It is best not to overvoltage when using the voltage. No-load rated current: less than 0.05A Discharged spit volume: 100L/H Lift: 3V specification lift 0.35 meters, 4.5V specification lift 0.5 meters Load rated current: 0.18A Use: Diving type Noise: 40dB MAX (background noise 35dB, less than 0.5m) Using fluids: tap water, groundwater, seawater Water temperature: -20°C ~ 50°C Ambient humidity: 45% -90% Continuous life: more than 10 hours Motor: Brush motor Parameters: 4.7V 7200 rpm Pipe inner diameter: 6mm / 0.24" Line length: 15cm / 5.91" Size: 45 * 32 * 23mm / 1.77 * 1.26 * 0.91" Weight: 30g Package includes: 5 * DC3-6V Low noise brushless motor pump Small size ensures easy installation Compact size, humanized design, easy to install Economical Water Pumps for Motor Pumps - Low energy consumption, helps to save electricity Premium material provides low noise but high efficiency performance - High quality