Versatile inline booster fan，In grow tents, grow rooms, and indoor gardens, it’s primarily used as an intake fan to bring in fresh air.FEATURE:★ ★ High-quality copper motor and high-quality rotor ensure fast speed and strong wind.★ ★ The shell and blade are made of high-quality ABS, which is durable and not easy to deform.★ ★ Ideal for removing moist air, odors and air pollutants from bathrooms, showers, kitchens, hydroponics and other living spaces without windows or natural ventilation.SPECIFICATION:Size: 2"/40mmWeight: 200gOutput: 12VPower: 6/18WVoltage: 12V DCNoise : 38db/58dbNominal frequency: 50HzRated speed: 14700r/12200minAir volume: 36/54 cubic meters per hourUse space: about 3 square meters / 32.3 square feetOpening diameter: 40mm/1.5in(Please refer to picture 2 for specific size)Detailed size: 107x55.5mm / 4.2x2.1in(Please refer to picture 2 for specific size)Adapter parameters: AC/DC ADAPTERInput: 100-240V AC 50/60HzSHIPPING LIST:1 * Exhaust Fan1 * Power booster