Morningstars SunLight solar lighting controller combines the SunSaver design with an advanced microcontroller for automatic lighting control functions. 
Four Versions Available - 12 Volt: 10 and 20 amp ratings
 - 24 Volt: 10 and 20 amp ratings
 
Warranty  Model Numbers - SL-10L-24V, SL-10L-12V, SL-20L-24V, SL-20L-12V
 
Key Features and Benefits- Microcontroller digital accuracy
 - Fully automatic operation
 - Ten field adjustable lighting control options
 - Special on/off/on lighting 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
 -  Product Specifications | Download
 
 | SunLight Electrical Specifications | 12 Volt | 24 Volt | 
| Rated Solar Input | 10/20 A | 
| Rated Load | 10/20 A | 
| 25% Current Overload | 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 +85C |