1. MPPTandPWM Coexist Function: The solar charge controller automatically adapt to the adjustment charging mode (MPPT or PWM), and automatically adjust the charging according to the type of battery. 2. Small Tip: For example, lithium batteries need to use the MPPT charging method, and those that can charge 12V acid batteries use the PWM charging method. 3. LCD Display: The solar charge controller features the large-screen LCD display, charge and discharge current display, cumulative power generation and discharge power query, temperature display, light control and delay control adjustable charge and discharge parameters, with functions such as power-off memory. 4. Dual Ports: The solar charge controller features the dual USB ports, the maximum current of it is 2.5A, and it supports for ' phone charging. 5. Multiple Functions: The solar charge controller features is equipped with all necessary protection devices, the control parameters of the system are adjustable, easy to set up and operate. Built-in short circuit protection, open circuit protection, reverse connection protection, and overload protection. Reverse current protection, low heat generation, self-recovery function. The solar charge controller is suitable for solar green light, solar light box, advertisement board, solar lamp, house solar power generation system, marine solar power generation system and outdoor living solar power generation system. Note:Due to different factory batches, slight differences in appearance not affect the use. Specification:100A Colour:Black and Green Material:Plastic Package Contents: 1 x Solar Panel Charge 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.