DC-DC 12V24V(9-25V) TO 30V 3.5A. Wide range of applications: Industrial automation control. Research equipment, LED lighting, industrial control equipment, car equipment, power equipment, instrumentation equipment, medical equipment, refrigeration empty purifier,Electronic refrigerator, liquid crystal display, LED display, audiovisual product, security imported computer chassis, digital products and various instruments and other fields The 12V,24V POWER voltage is converted to a 30V DC voltage. Precautions (Uncertain installations, please contact our company before installation): !!!Long-term use cannot be fully loaded, please reduce power or choose more powerful products, best 50% of maximum power. Make sure that all the polarity is correct, and the anti-negative conversion converter (except for input tape reverse protection) Make sure the cable is pure copper wire, the input and output cables cannot exceed 2 meters, and the output will be removed by more than 2 meters. The voltage will be reflected. If the line is extended, you need to increase the line diameter according to the corresponding multiple. The cable needs to be connected to the thread, please refer to the wire diameter size and securely connected. The input terminal is required to connect the fuse or air switch, and you need to select the corresponding fuse or switch] (except the input belt fuse). Make sure the battery capacity is large enough to provide sufficient energy. If the input energy is not enough, the voltage will be reduced. Make sure the installation environment is well ventilated, so as not to protect over temperature protection, limit current output. Cannot connect directly to solar panels or wind wind turbines. Non-charged models cannot be charged battery and lithium batteries. When connecting the input test with DC power supply, the input should not exceed the voltage