Forsun LCD 20A 12V/24V PWM Solar Panel Charge Controller Battery Regulator Adapter with Dual USB Ports 5V 2A Output for Home House Boat Camping RV Solar Power System Solar Lighting Garden Use Rated Voltage(Va):12/24V auto Rated Load Current(A):30A USB output:2.1A Over Charge Current(V):13.7V/*2 24V Over Discharge Current(V):10.5-11V/*2 24V