Yangtze MPPT Solar Charge Controller 12V 24V 40A  as one of Tracer A series adopts common positive design and advanced MPPT control algorithm. The products can track the MPP point fast and accurately in any situation which will improve energy efficiency and obtain the maximum solar energy.MPPT Solar Charge Controller 12V 24V 40A  Features: •Advanced MPPT technology•High tracking efficiency no less than 99.5%•Peak 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,Website:http://www.yangtze-power.com, load control etc. •3-Stage charge with PWM output •Common positive grounding design •RS485 port with industrial standard MODBUS open architecture •Fully programmable function via PC software or remote meterMPPT Solar Charge Controller 12V24V 40A  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