Features: Advanced MPPT technology High tracking efficiency no less than 99.5% Maximum conversion efficiency of 98% Ultra-fast tracking speed Accurately recognizing and tracking of multiple power point Multi-function LCD displays system information intuitively User programmable for battery types, load control etc. 3-Stage charge with PWM output Negative grounding design RS485 port with industrial standard MODBUS open architecture Fully programmable function via PC software or remote meter.Electronic protections: PV reverse polarity protection PV short circuit protection PV over current alarm protection Battery overcharge protection Battery over discharge protection Battery reverse polarity protection Load short circuit protection Load overload protection Overheating protection. The item "Epever MPPT Solar Charge Controller Tracer Power Regulator 10/20/30/40A PV100V" is in sale since Thursday, January 14, 2021. This item is in the category "Home & Garden\Home Improvement\Electrical Supplies\Alternative Energy Supplies\Alternative Energy Chargers & Inverters". The seller is "wsh1982" and is located in Rowland Heights, California. This item can be shipped to United States.