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1-1 Introduction
The SC Lighting Control Series is an advanced design using a microcontroller for digital accuracy
and fully automatic operation. Each model unit can be used for 12V, 24V and 48V system and can
be operated at three major functions including solar charging, load control and lighting control.
The PWM battery charging has been optimized for longer battery life and the state-of-the-art
auto detector of day and night has been precisely applied to log the different length of night
hours for lighting control no matter where and when (the North or the South, winter or summer)
SC Lighting Control Series is installed. Many specifications of the SC Lighting Control Series
are unique and designed for user-friendly operation. Please take the time to read this operator's
manual and follow the instruction step by step to help you make full use of many functions that
the SC Lighting Control Series can provide to your solar lighting system.
1-2 Safety Instruction
● This manual contains important instructions that should be followed during
installation and maintenance of the SC Lighting Control Series controller.
● Be very careful when working with batteries. Lead acid batteries can generate
explosive gases, and short circuits can draw thousands of amps from the battery.
Read all instructions provided with the battery.
● Do not exceed the rated current ratings of the controller.
● Do not exceed a battery voltage of 48V (nominal). Do not use a battery less than 12V.
● Charge only 12, 24, or 48 volt lead-acid batteries when using the standard battery
charging programs or NI-CAD batteries when DIP Switch number 3~5 is in the ON
position in the SC Lighting Control Series.
● DO NOT short circuit the PV array or load while connected to the controller. This
will damage the controller.
● The controller should be protected from direct sunlight. Ensure adequate space for
air flow around the controller.
● Do not install a SC Lighting Control Series in a sealed compartment with batteries.
● Never allow the solar array to be connected to the SC Lighting Control Series with the battery
disconnected. This can be a dangerous condition with high open-circuit solar voltage
present at the terminals.
● Pressure terminal connectors are not required. Use only copperwire with minimum
75°C insulation rating and between 10 AWG (5.2 mm2) and 14 AWG (2.1 mm2) gage.
● The negative system conductor should be properly grounded. Grounding should
comply with local codes.
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