Morningstars advanced SunLight solar lighting controller combines the SunSaver design with a microcontroller for automatic lighting control functions. This technology provides the following: * Proven Reliability * Precise Lighting Control * PWM Battery ChargingOperation: * 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 secondsFeatures * 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