Programmable nightlight function • Pulse Width Modulation (PWM) regulation for optimum performance (series type) • Integrated temperature compensation • Microprocessor controlled three-stage charging • Selectable Low Voltage Disconnect method; State of Charge (SOC) or voltage controlled • Compatible with sealed Liquid electrolyte and Gel (VRLA) type batteries (selectable via jumper switch) Other Features • Solid-state circuitry with load output protection • Reverse polarity protection • Reverse current protection (prevents batteries from discharging through solar array at night) • Full electronic protection with Acoustic warnings • The battery status, charging status and load status are clearly indicated by 5 LEDs. • The CMLNL series is a sophisticated solar charge controller for low cost applications. • The electronic circuitry is equipped with a microcontroller that provides high-efficiency charging technology together with a number of outstanding features such as status display, acoustic warning and safety / protection functions. • The CMLNL series comes with a programmable nightlight function where the load output can be switched on automatically from dusk to dawn, or for a user-defined number of hours after dusk. • The nightlight function is overridden by the 'battery deep discharge' protection to avoid excessive discharge and damage to the battery. • The temperature-compensated three-stage PWM series type charging method (boost-equalize-float) is adjustable to sealed and vented (Gel, VRLA) lead-acid batteries. • The 'Low Voltage Disconnect' function can be controlled either by SOC or by voltage. Technical Specifications Nominal voltage: 12/24V automatic recognition Max. solar panel current: 8A Boost voltage: 14.5V / 29.0V @ 25°C Equalization voltage: 14.8V / 29.6V @ 25°C Float Voltage: 13.7V / 27.4 @ 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) Dimensions(W x H x D): 80 x 100 x 32 mm Weight: 180g Temperature range: -20 to +50 °C