Large-size high-definition display screen and feedback button, effectively improve the efficiency of human-computer interaction. Hidden installation wiring The wiring installation adopts a hidden design. When using, pull down the bottom cover, connect the wiring, tighten the screws, and close the bottom cover after installation. Efficient and stable power generation, widely used in various industries Applicable to solar power generation systems, smart homes, solar chargers, solar monitoring systems, solar light boxes, solar billboards, Taiang and other warning lights, etc. Applicable to the needs of various industries. High-efficiency chips, using power point tracking technology, greatly improve the energy utilization rate of solar energy systems, the conversion efficiency is not less than 99 percent , and the battery is efficiently . Rated charging current: 30A USB output current: maximum 5V3A PV maximum open circuit voltage: 80V PV maximum input power: 400W or 12V 800W or 24V MPPT tracking efficiency: equal 99 percent Conversion efficiency: less than equal 98 percent System voltage: 12V24V automatic identification Note:The product appearance and printed words depending on the batch, but this does not affect use. Colour:White Material:Plastic Package Contents: 1 x Solar Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.