Morningstar is the world’s leading supplier of solar controllers


Relay Driver
Morningstar’s Relay Driver is a logic module which provides high level system control functions such as high/low  
voltage alarms, load control and generator start. The product controls four independent relay driver outputs by  
reading digital data inputs from Morningstar’s TriStar controller or by reading battery voltage when used in systems with other controllers.
 Data Sheet

Morningstar’s TriStar Controller is a three-function controller that provides reliable solar battery charging, load control or diversion regulation. The controller operates in one of these modes at a time and two or more controllers may be used to provide multiple functions.
  • The controller is a three-function controller that provides reliable solar battery charging, load control or diversion regulation
  • Uses advanced technology and automated production to provide exciting new features at a competitive cost
  • The controller is UL listed and is designed for both solar home systems and professional applicationS
 Data Sheet

By using highly advanced technology, this second generation ProStar sets new standards for reliability and self-diagnostics. The new ProStar also provides several unique features and protections. And Morningstar’s patented PWM battery charging has been further optimized for longer battery life and improved system performance.
The new ProStar is available in 15 or 30 amps, 12/24 or 48 volt, and negative or positive ground. The controller may be paralleled for a solar input rating of up to 300 amps. An optional meter provides an extensive display of self-testing and system status.
 Data Sheet

The SunSaver’s advanced design delivers outstanding performance and value. The
SunSaver’s low cost is made possible by Morningstar’s unique approach to design and manufacturing:
  • Eight versions available (see back) 12 and 24 volts 6, 10 and 20 amps
  • 100% solid state
  • Series design (not shunt)
  • True 0 to 100% PWM duty cycle
  • Setpoint accuracy to 35 mV
  • Rated for 25% overloads
  • Fully encapsulated in epoxy potting
  • Marine rated terminals / anodized case
  • Temperature compensation
  • Sealed / Flooded battery select
  • No need to derate
  • Parallel for 40 amps or more
  • Green charging / Red LVD indicators

 Data Sheet



Morningstar’s advanced SunLight solar lighting controller combines the SunSaver design with a microcontroller for automatic lighting control functions.
  • Rotary digital switch to select among 10 lighting options
  • Special on/off/on functions
  • Test button turns lights on for 5 minutes
  • Timer accuracy is within 2 seconds

 Data Sheet 



Morningstar’s SunGuard is the most advanced small, economical solar charge controller on the market today.
  • No need to derate
  • Fully encapsulated in epoxy potting
  • Self-consumption is 6 mA
  • Temperature compensation
  • ISO 9002 quality program

 Data Sheet 


Morningstar’s well-known high quality and reliability is now available in a low cost solar controller. The SHS Controller is ideal for rural electrification systems with one to three solar panels. This controller   meets World Bank specifications and provides many features and benefits.  
 Data Sheet