Check the listing for details. 6A MPPT Solar Charge Controller Solar Charging Module Board 1-100W 8-30V. Color: Yellow, Condition: New. Listed at 12.49 USD. Features: 1.The product is made of high-quality materials with guaranteed quality 2.Stable product performance and long service life 3.Maximum supported solar power: 100W, truly efficient MPPT 4.The output voltage can be adjusted arbitrarily, and CC-CV can be automatically controlled (it can support single or multiple lithium batteries or Lithium iron phosphate or lead-acid batteries) 5.The battery terminal is equipped with overvoltage protection function Parameter: Maximum power point tracking of solar cells, output current greater than solar panel current, truly efficient MPPT, supporting 7V-28V, up to 100W solar panels The output voltage can be adjusted arbitrarily, and the CC-CV is automatically controlled (it can support single or multiple lithium batteries or Lithium iron phosphate or lead-acid batteries) Complete charging management of the battery Maximum supported solar power: 100W PWM switching frequency: 300KHz Adaptive adjustment of constant current charging current 6A Trickle charging of deeply discharged batteries Dual indication of charging status and charging end status (red light on during charging/full blue light on/red light flashing/green light constantly on, indicating no battery connected) Soft start function Battery end overvoltage protection Module nature: buck type with maximum power point tracking charging board Input voltage 8-30V The output voltage is adjustable from 4.2-28V, and the input is at least 2V higher than the output Output current 6A adaptive adjustment Conversion efficiency: typical 92% output 18V output 14V Package include: Module X1