Wide DC input voltage range. Maximum efficiency is more than 98.7%, European efficiency reaches 98.4%. Double lines MPPT function. MPPT efficiency >99.9%. LCD displays different language screen. Perfect protection function. Meets STate Grid LVRT requirements. Remote parameter monitoring function. Remote active power adjustable function (0-100%). Adjustable reactive power, power factor range will head 0.9 or back 0.9. Over temperature linear derating function.