Product overview:\n\nThe UK solar power specialist Photonic Universe Ltd is proud to offer this brand new high efficiency 30A MPPT solar charge controller / regulator with built in LCD display for solar panels up to 390W (12V battery system) / 780W (24V battery system) up to 100V. Supports Lithium battery charging. \n\n   Our promise:\n\n--No-quibble 30 days return period\n\n--UK repair or replacement warranty\n\n--Free lifetime technical product support\n\n--Deep industry expertise and knowledge\n\n \n\nMPPT Technology:\n\nThis solar charge controller uses the most advanced Maximum Power Point Tracking (MPPT) technology to track the maximum power voltage point of solar panels as it varies depending on sunlight exposure and temperature. This technology ensures the maximum efficiency of your solar system and significantly outperforms standard PWM solar controllers. Another benefit of MPPT technology is the wide solar input voltage range - this controller can work not on.