Axial DC cooling FAN’s, wide range of FAN’s; 48Vdc for telecommunications applications, standard range with ball- or sleeve-bearing, optional IC functions of alarm, tachometer, thermistor speed control or Custom types. Water proof option IP43/44 and 55. Thermostat technology to support Green applications. NEW: Tip-Magnetic-Driving FAN, reduces traditional hub area, increase of airflow and static pressure, brings the air stream directly to the centralized heat source. T.M.D. Fan improves total efficiency of heat dissipation At least 15%.