Morningstar’s advanced SunLight solar lighting controller combines a microcontroller for automatic lighting control with a PWM (pulse width modulated) battery charging regulator.

Operation

• Rotary digital switch to select among 10 lighting options (see back)
• Test button flashes red LED to confirm correct rotary switch selection
• Test button turns lights on for 5 minutes (in LVD limited to 3 times)
• Battery low voltage disconnect (LVD) overrides lighting timer
• Sunrise overrides lighting timer
• Timer accuracy is within 2 seconds

Features

• Microcontroller digital accuracy
• Fully automatic operation
• Ten field adjustable lighting control options
• Special on/off/on functions
• Manual test capability
• Battery low voltage disconnect function (LVD) override protection
• Detects day and night using the PV array
• Suitable for all 12/24 Vdc lamps
• Sealed/Flooded battery select
• Temperature compensation
• Parallel with a SunSaver for 40 amps solar
• Includes SunSaver battery charging circuit

Specifications

• Rated Solar Input: 10A
• Rated Load: 10A
• 25% Current Overload: 5min
• Regulation Voltage:
  Sealed Battery 14.1V
  Flooded Battery 14.4V
• LVD Disconnect: 11.7V
• LVD Reconnect: 12.8V
• Temp. Comp. (mV/˚C) -27
• Self-consumption: 8mA
• Operating Temp: –40 to +85ºC

Morningstar SUNLIGHT manual (PDF File)