also with a "LOAD" and LVD output, that can be used for lower load, such as lights and small device. the load terminal with a low voltage disconnect is the advantage, hence it will keep from running the battery down too far and shut off everything is connected to the load terminal. The "LOAD" output is always used for small non-essential load, such as lights. a little, such as the SRAB-60A, ST1-60A can also be used as a lighting controllers, to switch lights on at dark, but the "LOAD" SLC lighting controllers is always a better choose for it. Don't use the LOAD output to load any but very small power inverter. Inverter can with very high huge current and may blow the controllers.
Many systems don't need the LVD function - it only can drive smaller device. Depend on the rate of the controllers, this may be from 6~60 amps. You can't load any but the smallest inverters from the LOAD output. in some controller, such as the Hanfong SRAB, ST series. the loading output can be used to load a heavy type relay for load control, gen start etc... The LVD or LOAD output is always most used in RV & remote systems, such as computer, monitor, and mobile phone sites where the device is small size and the place is unattended.