Description 2-in-1 Grow Light with Circulation Fan: This is the first full-spectrum LED grow light with a fully integrated circulatory fan; The fan increases airflow into the canopy, It’s programmable Energy-Saving & Low-Noise Fan: This Fan is controlled by PWM more energy-efficient; The mixed-flow design allows the fans deliver air across longer distances; The fan ventilates quietly at just 35 dB Excellent Odor Control: Made of premium RC 412 Australian Virgin charcoal at 1200 IAV, helps to eliminate pungent smells and chemicals; The 38mm thick charcoal bed with high microporosity ensures its high absorption Unique Design: The dual-sided galvanized steel mesh adopt round hole design, which greatly increases the open area and ensures the max. airflow 223 CFM; The lengthened carbon canister enables a higher filtration rate Perfect Connector: This ducting is primarily used with duct fan systems in various air circulation and ventilation projects to move and transport air, increasing airflow and easing connections between spaces; It's compatible with front-mounted and top-loading dryers/fans