Double USB Output: The controller has 2 USB output, the maximum current arrives 2.5A, it supports charging for IOS. Multi Protection: Built in over current, short circuit protection, open circuit protection, reverse connection protection are all self recovery type, without damaging the controller. Charging Management: The complete 3 phases charging management enable you to use the controller more safely and conveniently Low Heat Generation: The controller features an anti back circuit with ultra low heat value. You can take it with confidence LCD Display: This solar controller features a large screen LCD display, which displays charging and discharging current, accumulated electricity generated and discharged, temperature, etc.