Advanced maximum power point tracking (MPPT) technology, the efficiency is not less than 99.5%. High-quality components improve the system persuitable formance, and the maximum conversion efficiency is 98%. Super fast tracking speed and tracking efficiency. Large screen LCD display, charge and discharge current display, cumulative power generation and discharge power query, temperature display, light control + delay control; adjustable charge and discharge parameters, with power-off memory and other functions. Dual USB output, the maximum current is 2.5A. Equipped with all necessary protection devices, the control parameters of the system are adjustable, easy to set up and operate. Built-in overheating, overcurrent, short circuit, open circuit protection, fault elimination, controller automatic recovery. Two-way MOS tube anti-backflow circuit, high-power charging mode, ultra-low heat. Built-in short circuit protection, open circuit protection, reverse connection protection, overload protection. Reverse current protection, low calorific value, with self-recovery function, not damage the controller. Display charging voltage value.Current autofocus MPPT tracking charging, high charging efficiency, charging process does not stop detection, two-way focus tracking. Voltage: DC 12V / 24V Display: LCD screen Self-consumption: less than 10MA Overcharge protection: 14.4V / 28.8V Overcharge Float charge: 13.7V / 27.4V Charge recovery voltage: 12.6V / 25.2V Over discharge protection: 10.7V / 21.4V Over discharge recovery: 12.6V / 25.2V Working temperature: -35 Celsius -60 Celsius 12V fits 18V solar panel, 24V fits 36V solar panel 12.0 volt lead acid battery corresponding The float voltage is set to: 13.6 The recovery discharge voltage is set to: 12.6 The discharge cut-off voltageis set to: 10.7 12.8 volt lithium iron phosphate battery corresponding The float voltage is set to: 14.6 The recovery discharge voltage is set to: 13.6 The discharge cut-off voltage is set to: 11.0 11.1 volt lithium battery corresponding The float voltage is set to: 12.6 The recovery discharge voltage is set to: 11.6 The discharge cut-off voltage is set to: 9.6 The minute is adjustable when the output is turned off, which is more convenient (there is no adjustment when the market is only available). PV system power 100A battery 12V photovoltaic system: power is 650W 100A battery 24V photovoltaic system: power is 1300W Colour:orange Material:plastic Size:13.3 x 7 x 3.5cm Package Contents: 1 x 100A Solar Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.