Tracer Dream Series adopts MPPT technology. Solar power charge controller is also ran by 32 bits CPU, so stability and speed can be guaranteed. Based on the synchronous rectifier technology, the transfer efficiency of circuit can be increased up to 98%and the Pmax tracking accuracy up to 99. 5%. So our types of solar charge controller can trace the accurate Pmax in the shortest time (10~20s) , even when the sunlight changes rapidly. It can perfectly handle extreme weather or weak sunlight.