Morningstar’s advanced SunLight solar lighting
controller combines the SunSaver design with
a microcontroller for automatic lighting control
functions.

This technology provides:
• Proven Reliability
• Precise Lighting Control
• PWM Battery Charging

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)
• LVD overrides lighting timer
• Sunrise overrides lighting timer
• Timer accuracy is within 2 seconds
T h r e e Version s A v a ilable:
• 12 Volt: 10 and 20 amp ratings
• 24 Volt: 10 amp ratings

Features:
• Microcontroller digital accuracy
• Fully automatic operation
• Ten field adjustable lighting control options
• Special on/off/on functions
• Manual test capability
• 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

Mechanical Specifications
Wire size #10 AWG (5.2 mm2)
Anodized aluminum case
Marine rated terminals
Epoxy encapsulated
Weight is 9 oz (0.26 kg)

Electrical Specifications
12 Volt 24 Volt
Rated Solar Input 10/20 A 10 A
Rated Load 10/20 A 10 A
25% Current Overload 5 min. 5 min.
Regulation Voltage:
Sealed Battery 14.1 V 28.2 V
Flooded Battery 14.4 V 28.8 V
Load Disconnect 11.7 V 23.4 V
LVD Reconnect 12.8 V 25.6 V
Temp. Comp. (mV/°C) –27 –54
Self-consumption 8 mA 9 mA
Operating Temp. –40 to +85ºC

Spec Sheet