SunLight 10L-12V Charge Controller The MorningStar SunLight controllers combine the features of the SunSaver controllers (including LVD) with an adjustable automatic lighting control circuit. This allows you to connect a DC light and have it come on at dusk for a set period of time or dusk-to-dawn. It's 10 position rotary switch lets you choose exactly how your DC light will operate. 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