Features 1WIDE APPLICABLE: This product is suitable for solar power generation systems, solar street lights, solar chargers, solar light boxes, RVs, etc. 2WITH BLUETOOTH FUNCTION: You can set parameters remotely and view the parameters of the device. Lithium and acid universal, with lithium battery self activation function 38 PROTECTION FUNCTIONS: Come with high voltage protection, low voltage protection, overload protection, overheat protection, positive and negative polarity reverse protection, output short circuit protection, overcurrent protection, damage protection, etc. 4ULTRA HIGH CONVERSION RATE: High efficiency chip, with high power point tracking technology design, the highest utilization of solar energy can reach 99% 5STABLE AND RELIABLE: The use of excellent chips and components bring stable quality, long life, you can rest assured to use 6CONVENIENT SETTING: Intelligent human machine interactive display, easy to complete the settings of various parameters, parameters at a glance Specification Item Type: MPPT Solar Charge ControllerProduct Color: BlackRated Current: 30AMaximum PV Input Power: 390W (12V), 780W (24V)Bluetooth Function: Built in Bluetooth function Package List 1 x Solar Controller1 x User Manual