The SR-HM-PWM-330W solar charge controller keeps batteries regulated and prevents them from overcharging and discharging. A DC load control feature makes this charge controller ideal for LED lights. A digital display makes monitoring current, discharge current and batter bank capacity a breeze.

• Digital display shows charging current, discharge current and battery bank capacity
• Dual USB ports for directly charging portable devices
• 3 stage charging method: bulk, absorption and floating
• Ideally suited for three Flex 100 watt Solar Tech Solar panels 320-Watt and less
• Maximum solar module power input: 320-Watt
• Maximum solar module open circuit-Voltage inputs: 25-Volt
• Maximum charging current output: 20-Amp
• Nominal battery-Voltage output: 12-Volt and 24-Volt
• Device is designed to flush mount, please see product manual for details
• PWM technology works on only Low-Voltage panels 32 cell max. 12 or 24 volt
• 1/16 edge for the flush mount.

1) 12V/ 24 V system voltages are automatically recognized.
2) Charging program options for sealed, GEL and flooded lead-acid batteries and lithium batteries are available.
3) An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charge to the battery periodically or when over discharged, can effectively prevent the battery from non-equalization and sulfuration, thus extending the battery's service life (with the exception of GEL and lithium batteries).
4) With temperature compensation employed, charging parameters can be automatically adjusted (with the exception of lithium batteries).
5) A wide range of load working modes facilitate the product's application to different types of street lights and monitoring devices.
6) The product provides overcharge, over-discharge, overload protection, as well as short-circuit and reverse-connection protection.
7) By virtue of an advanced load starting method, large-capacitance loads can be started smoothly.
8) A range of parameter settings and power-down saving functions are available ,thus requiring no repeated setting.
9) The product provides a dot matrix graphic LCD screen and a human-machine interface with 2 keys.
10)The user-friendly design of browser and animation interfaces ensures convenient and intuitive operations.
11) (An optional communication function) provides a RJ12 data port (output of TTL /MAX232 /bluetooth signals), with the data adopting the standard 
Modbus protocol, and can be used together with our upper computer monitoring software.
12) Boasting an industrial grade design, the product can function well in various tough conditions.
13) TVS lighting protection is adopted.

Rated current 40A
System voltage Automatic recognition of 12V/24V
No-load loss < 13mA/12V；< 15mA/24V
Max. Solar energy input voltage  <55
Max. voltage at the battery end <34V
Max. voltage at the battery end  Flooded FLD
Overvoltage protection 16．0V
Equalizing charging voltage    14.8
Boost charging voltage 14.6
Floating charging voltage 13.8
Charging recovery voltage    13.2V
Over-discharge recovery voltage 12.5V（settable with the keys）
Over-discharge voltage 11.0V（settable with the keys）
Equalizing charging interval 30days
Equalizing charging time 1H
Boost charging time    2H    -
Temperature compensation     -3.0mV/℃/2V
Light controlvoltage    Light control on 5V, light control off 4 V (light control on minus 1 V)    
Light control judgment time    10 minutes     
USB function Yes
Operating temperature -25℃to+55℃；    
IP protection degree IP30    
Net weight 390g
Protection functions: attery reverse connection protection, solar panel reverse connection protection, reverse charging protection at night    
Charging overload protection,overcurrent protection, short circuit protection    
Dimensions(mm) 164.0×103.5×47.0

1) 12V/ 24 V system voltages are automatically recognized.
2) Charging program options for sealed, GEL and flooded lead-acid batteries and lithium batteries are available.
3) An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charge to the battery periodically or when over discharged, can effectively prevent the battery from non-equalization and sulfuration, thus extending the battery's service life (with the exception of GEL and lithium batteries).
4) With temperature compensation employed, charging parameters can be automatically adjusted (with the exception of lithium batteries).
5) A wide range of load working modes facilitate the product's application to different types of street lights and monitoring devices.
6) The product provides overcharge, over-discharge, overload protection, as well as short-circuit and reverse-connection protection.
7) By virtue of an advanced load starting method, large-capacitance loads can be started smoothly.
8) A range of parameter settings and power-down saving functions are available ,thus requiring no repeated setting.
9) The product provides a dot matrix graphic LCD screen and a human-machine interface with 2 keys.
10)The user-friendly design of browser and animation interfaces ensures convenient and intuitive operations.
11) (An optional communication function) provides a RJ12 data port (output of TTL /MAX232 /bluetooth signals), with the data adopting the standard 
Modbus protocol, and can be used together with our upper computer monitoring software.
12) Boasting an industrial grade design, the product can function well in various tough conditions.
13) TVS lighting protection is adopted.

Rated current 60A
System voltage Automatic recognition of 12V/24V
No-load loss < 13mA/12V；< 15mA/24V
Max. Solar energy input voltage  <55
Max. voltage at the battery end <34V
Max. voltage at the battery end  GEL
Overvoltage protection 16．0V
Boost charging voltage 14.2
Floating charging voltage 13.8
Charging recovery voltage    13.2V
Over-discharge recovery voltage 12.5V（settable with the keys）
Over-discharge voltage 11.0V（settable with the keys）
Boost charging time    2H    -
Temperature compensation     -3.0mV/℃/2V
Light controlvoltage    Light control on 5V, light control off 4 V (light control on minus 1 V)    
Light control judgment time    10 minutes     
USB function No
Operating temperature -25℃ to +55℃；    
IP protection degree IP30    
Net weight 650g
Protection functions: attery reverse connection protection, solar panel reverse connection protection, reverse charging protection at night    
Charging overload protection,overcurrent protection, short circuit protection    
Dimensions(mm) 189.27×127.2×54

1.12V/ 24 V system voltages are automatically recognized.
2.An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charging to the battery periodically or when over discharged, can effectively prevent the battery from non-equalization and sulfuration, thus extending the battery's service life.
3.With temperature compensation employed, charging parameters can be automatically adjusted.
4.A wide range of load working modes facilitate the product's application to different types of load.
5.The product provides overcharge, over-discharge, overload protection, as well as short-circuit protection.
6.By virtue of an advanced load starting method, large-capacitance loads can be started smoothly.
7.The product provides a dot matrix graphic LCD screen and a human-machine interface with a key.
8.The user-friendly design of browser and dynamic interfaces ensure convenient and intuitive operations.
9.Boasting an industrial grade design, the product can function well in various tough conditions.
10.TVS lighting protection is adopted.

Rated current 10A
System voltage Automatic recognition of 12 V/ 24 V
No-load loss < 10mA/12V；< 12mA/24V
Max. Solar energy input voltage <55V
Max. voltage at the battery end <35V
Overvoltage protection 17.0V；×2/24V；
Equalizing charging voltage 14.6V；×2/24V；
Boost charging voltage 14.4V；×2/24V；
Floating charging voltage 13.8V；×2/24V；
Charging recovery voltage 13.2V；×2/24V；
Over-discharge recovery voltage 12.6V；×2/24V；
Over-discharge voltage 11.1V；×2/24V；
Equalizing charging interval 30days
Equalizing charging time 1H
Boost charging time 2H
Temperature compensation -3.0mV/℃/2V
Light control voltage
- Light control on 5V, ×2/24V； 
- Light control off 6V, ×2/24V；
Light control judgment time 1minute
Operating temperature -25℃ to +55℃；
IP protection degree IP30
Net  weight 100g
Protection functions 
- Solar panel short circuit and reverse-connection protection
- Over-temperature, overload and short circuit protection
Dimensions 103×71×36(mm)

1) 12V/ 24 V system voltages are automatically recognized.
2) Charging program options for sealed, GEL and flooded lead-acid batteries and lithium batteries are available.
3) An upgraded 3-stage PWM charging algorithm is adopted. Application of an equalizing charge to the battery periodically or when over discharged, can effectively prevent the battery from non-equalization and sulfuration, thus extending the battery's service life (with the exception of GEL and lithium batteries).
4) With temperature compensation employed, charging parameters can be automatically adjusted (with the exception of lithium batteries).
5) A wide range of load working modes facilitate the product's application to different types of street lights and monitoring devices.
6) The product provides overcharge, over-discharge, overload protection, as well as short-circuit and reverse-connection protection.
7) By virtue of an advanced load starting method, large-capacitance loads can be started smoothly.
8) A range of parameter settings and power-down saving functions are available ,thus requiring no repeated setting.
9) The product provides a dot matrix graphic LCD screen and a human-machine interface with 2 keys.
10)The user-friendly design of browser and animation interfaces ensures convenient and intuitive operations.
11) (An optional communication function) provides a RJ12 data port (output of TTL /MAX232 /bluetooth signals), with the data adopting the standard 
Modbus protocol, and can be used together with our upper computer monitoring software.
12) Boasting an industrial grade design, the product can function well in various tough conditions.
13) TVS lighting protection is adopted.

Rated current 30A
System voltage Automatic recognition of 12V/24V
No-load loss < 13mA/12V；< 15mA/24V
Max. Solar energy input voltage  <55
Max. voltage at the battery end <34V
Max. voltage at the battery end  Flooded FLD
Overvoltage protection 16．0V
Equalizing charging voltage    14.8
Boost charging voltage 14.6
Floating charging voltage 13.8
Charging recovery voltage    13.2V
Over-discharge recovery voltage 12.5V（settable with the keys）
Over-discharge voltage 11.0V（settable with the keys）
Equalizing charging interval 30days
Equalizing charging time 1H
Boost charging time    2H    -
Temperature compensation     -3.0mV/℃/2V
Light controlvoltage    Light control on 5V, light control off 4 V (light control on minus 1 V)    
Light control judgment time    10 minutes     
USB function Yes
Operating temperature -25℃to+55℃；    
IP protection degree IP30    
Net weight 390g
Protection functions: attery reverse connection protection, solar panel reverse connection protection, reverse charging protection at night    
Charging overload protection,overcurrent protection, short circuit protection    
Dimensions(mm) 164.0×103.5×47.0