Manufacturer: Morningstar Corp
Manufacturer Part#: SL-20L-24V





Morningstar's SunLight™ solar lighting controller combines the SunSaver design with an advanced microcontroller for automatic lighting control functions.



Key Features & Benefits

Morningstar's SunLight is the world's leading solar lighting controller. We have combined all the advantages of our SunSaver charge controller with some unique lighting control features.

• Includes all the advantages of the SunSaver charge controller. Please refer to the SunSaver product information for more details.
• Unique Lighting Control Features
  • Using solar array voltage to determine day and night, the SunLight provides 10 different lighting control options.
  • By measuring the length of the night, the SunLight's ON/OFF/ON options provide the capability to turn on the light at sunset, turn off the light after 3 to 6 hours, and then turn on the light again for 1 or 2 hours before sunrise.
  • The length of the night is calculated by taking a moving 4 night average, and thus automatically adjusts for seasonal changes in the length of the night.
  • The test button helps the installer by blinking the red LED to confirm correct selection of lighting control option, and also turns on the light for 5 minutes to verify that the light is operating correctly.
  • Timer accuracy is within 2 seconds.
• The SunLight is available in 10A or 20A, and at 12VDC or 24VDC
• For solar arrays greater than 20A, the SunLight may be used in parallel with the SunSaver controller (lighting control limited to 20A).

Standard Controller Features:

Physical & Electrical Diagrams

About Morningstar Corporation

Morningstar Corporation is a world-leading manufacturer and supplier of solar charge controllers and inverters. Since their inception in 1993, over 2.5 million Morningstar units have been installed in over 112 countries around the world. Morningstar controllers and inverters have set new standards in performance, quality, reliability and innovative features, and global solar markets have consistently recognized Morningstar's products as the industry's best overall customer value.

Manufacturing is conducted in a fully-automated, world-class ISO 9001 facility, and quality control includes 100% functional testing on every product, using the latest computerized test equipment and processes.

For over 20 years, Morningstar has preserved its ownership, management and strategy, which has allowed the company to build trusted, long-term relationships with its employees, customers and suppliers.