Feature:1. MPPT Maximum Power Point Tracking Technology: This solar boost controller adopts MPPT maximum power point tracking technology, with a maximum tracking efficiency of 99%, which can save the energy of the battery panel and reduce the cost of the panel.2. Excellent Components: This solar boost controller uses excellent quality components to improve system performance with a maximum conversion efficiency of 97%. It has super fast maximum power point tracking speed, while ensuring tracking efficiency.3. 4 Digit Tube: This solar boost controller adopts 4 digit tube with real time display of panel voltage, charging current, battery voltage, etc., which is convenient and clear to show the charging status.4. Wider PV Array: This solar boost controller utilizes a wider photovoltaic array with a maximum power point operating voltage range of 12V50V.5. Wide Application: This solar boost controller has a wide range of applications and can be applied to a variety of batteries, including lithium batteries, lithium iron batteries and so on.Specification:Item Type: Solar Boost ControllerMaterial: Aluminum AlloyBattery Type: 24V, 36V, 48V, 60V, 72V Self Recognition (Default 48V)Overvoltage: 28.8V(24V), 43.2V(36V), 57.6V(48V), 72.0V(60V), 86.4V(72V), Can be set by yourself.PV Maximum Power: 600W at 18VPV Maximum Current: 33ASolar Input Voltage Range: 12-50V ( Solar panel voltage needs to be lower than battery voltage)MPPT Voltage Range: 15-45VReverse Connection Protection: Reverse battery connection will blow the fuse.MPPT Efficiency: >99%.Efficiency of The Whole Machine: 95%No Load Loss: <20mAOperating Temperature: -20-65Insulation Resistance: AC1KV, 5min Test, 20MWaterproof Grade: IP65.Package List:1 x Solar Boost Charge Controller2 x Fuse Note:1. Installation: When installing this controller, you should keep a certain distance and insulation strength between the controller and the electric vehicle motor controller and take good waterproof and damp proof measures.2. Wire: The length of the wires connecting the controller to the battery and the controller to the solar panel should be as short as possible to minimize electrical loss.3. Wiring: Connect the controller to the solar panel first, pay attention to the positive and negative poles, do not reverse. If the connection is reversed or poor contact, the red indicator or display does not show, you should check the connection line is not connected. When the wiring is correct, the red light or monitor voltage display. Then connect the controller and the battery, pay attention to the positive and negative poles, do not connect the reverse. When connected correctly, the blue indicator light is on, working normally.4. The solar panel should be placed outdoors, all in the sunlight. The controller has no display on cloudy days or no sunlight.