The Samlex Solar model SCC-30AB is a
Series type PWM (Pulse Width Modulation) Solar Charge Controller

It is based on an advanced design using a micro controller
for digital accuracy and fully automatic operation

It can be used for 12V or 24V systems
for solar charging

The PWM battery charging has been optimized for longer battery life
and the unit is designed for user-friendly operation
with up to eight charging options