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Charge Controller with Nightlight Function
  • One programmable nightlight function
  • PWM regulation (series type)
  • Integrated temperature compensation
  • Three-state charging method
  • SOC and voltage controlled LVD
  • Solid-state circuit and load protection
  • Reverse polarity protection
  • Fully electronically protected
The OMLNL series is a sophisticated solar charge controller family for low cost applications.
The electronic circuit is equipped with a microcontroller that provides high-efficiency charging technology together with a number of outstanding status display, warning and safety functions. The SMLNL series comes with two nightlight function mode. One of them is programmable that switch on the load output for a adjustable number of hours from dusk.
The nightlight function is overridden by a battery deep discharge protection to avoid excessive discharge and damage of the battery.
The temperature-compensated three-state PWM charging method (boost-equalize-float) is now adjustable to sealed and vented lead-acid batteries.
The low voltage disconnect function can be controlled either by SOC or by voltage.
The battery status, charging status and load status are clearly indicated by 5 LEDs.

Nominal voltage 12/24V automatic recognition
Max. solar panel current
5A 8A 10A 15A 20A
Max. load panel current 5A 8A 10A 15A 20A
Boost voltage 14.5V / 29.0V @ 25°C
Equalization voltage 14.8V / 29.6V @ 25°C
Low voltage disconnect function 11.4-11.9V /22.8-23.8V controlled by state of charge
11.0/22.0V controlled by voltage
Load reconnect voltage 12.8 / 25.6V
Temperature compensation -4mV / cell*K
Self consumption <4mA
Max. wire size 16mm2 (AWG#6)
80 x 100 x 32 mm
Weight 180gr
Temperature range -20 to +50 °C
Type of protection

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