Model Number: SUNMAX 1KW-6KW-1-#5481 Brand Name: SAKO Key Specifications/Special Features: Main features●Real MPPT charge controller built inside, 15%-20% higher than PWM charge controller, use solar utmost.●The charge controller will auto start or stop working according to the sunshine status, the night power consumption < 1W.●User can set up the charge current, voltage and the working mode as needs.●Pure sine wave, excellent load adaptability, can load different types of heavy load such as air conditioner, refrige and small pumps.●Big copper transformer built inside, isolated output, 100% real power, durable and safe.●Besides MPPT solar charger, built with big AC charger inside, ensure the power supply at night or continuous cloudy/rainy days.●Different types of battery selection to get the best charge voltage and mode, good for the battery service life.　●Big LCD display plusbuzzer alarms Design, show every information clearly. User can know the working status at glance.　
●Intelligent battery management, 3 stages of battery charging and all around protection functions. Extent battery life　
●Auto switch and auto charging, achieves inattention operation.
●All around protection: Over load, short circuit protection, ver charge, discharge protection, low battery and high protection.
●Temperature controlled fan, full automatic and silent operation.
●Compatible with generator, both generator and grid power can be extra backup