Features： * brand new and high quality *High quality and low failure efficiency devices of international famous brands (ST/IR) are used to ensure the service life of products *The terminal block has passed UL and VDE certification, making the product safer and more reliable *Within the working ambient temperature (- 25 ℃~55 ℃), it can operate continuously under full load with rated charging current *Three stage PWM charging: fast charging, lifting/equalizing, floating charging *Sealed, gel and open type battery charging procedures are optional *The LCD is used to dynamically display the operation data and working state of the equipment *User friendly key setting, more comfortable and convenient operation *Dual USB interface design, realizing DC power supply charging function for electronic equipment *Various load control modes: manual mode, light control mode, dual period mode and debugging mode *Real time electricity statistics and recording function *With battery temperature compensation function *Comprehensive electronic protection function Protection function: *Reverse polarity protection of photovoltaic array *Battery polarity reverse connection protection *Battery overvoltage protection *Battery over discharge protection *Battery over temperature protection *Load overload protection *Load short-circuit protection *Temperature sensor damage protection *Controller over temperature protection Specifications: Material:Metal+LCD Color: As shown Size：As shown Style: VS1024AU 10A, V 024AU 20A Current: 10A, 20A Voltage: 12V 24V LCD temperature range: – 20 ℃+70 ℃ Relative humidity: ≤ 95%, no condensation Terminal blocks: 4m ㎡ and 6m ㎡ respectively Grounding type: positive grounding USB output: 5VDC/2.4A (total) Dimensions: 142X85X41.5mm, 160X94XX49.3mm Protection grade: IP30