• Advanced maximum power point tracking (MPPT/PWM) technology, the efficiency is not less than 99.5%.

• 12V/24V voltage automatically recognized, provide you more convenience life.

• Large screen LCD, real-time display of temperature, charging current and discharge current.

• Dual USB can easily connect to your phone for fast and powerful charging.
  

• Built-in overheating, overcurrent, short circuit, open circuit protection, fault elimination, controller automatic recovery. 

• Two-way MOS tube anti-backflow circuit, high-power charging mode, ultra-low heat

Specifications:

• Dim: 140*80*50mm

• Working Voltage: DC 12V/24V(12V fits 18V solar panel, 24V fits 36V solar panel)
  

• Rated Charging Current: 20A/30A

• Overcharge protection: 14.4V / 28.8V

• Overcharge Float charge: 13.7V / 27.4V

• Charge recovery voltage: 12.6V / 25.2V

• Over discharge protection: 10.7V / 21.4V

• Over discharge recovery: 12.6V / 25.2V

• USB Output: 5V/2A