WS- AL MPPT30 30A WELLSEE solar street light controller is controlled by micro-CPU,which can intelligently regulate the working voltage of solar panels, making the solar panels always work at Maximum Power Point of V-A curve. Compared with ordinary solar street light controller, this MPPT solar street light controller can increase the efficiency of PV modules by 30%. It will start head lamp at dark, and the weak light will be change into a strong one after 30 minutes, and the light will weaker or dawn in fixed time . And the duration of strong light can be fixed.The strong light can be fixed as full powerlight + half power light in 10 hours,For example,You can set up the strong light for 6 hours(full power light), 4 hours weaker light(half power light),then change into morning light and the controller out-off of supply to the load automatically until dawn.

 

Functions and features

1, MPPT function

2, Microprocessor controller pulse width modulation (PWM) charging

3, amount of light can be fixed.

4, Suitable for polytype battery.

5, Overcharge protection

6, Short circuit protection (automatic restoration)

7, Thunder protection

8, Reverse discharge protection

9, Reverse polarity connection protection

10, It can set up to 20 steps TM Timing Module or 10 steps segment mode.

11, It has a LET indicator of the working condition of charging and discharging:

l   One piece of Charge Indicator LED (mark: Charge). When it is bright, the battery is charged strongly; flickeringly means floating charge, no light means stop charging.

l   One piece of Load Indicator LED (mark: load). When it is bright, there is output and load can work; if LED goes out, means there isn't output and the load cannot work.

l   Battery indicator: red =under voltage   Green =full    Yellow =normal 

 

Technical parameter:

Model	WS- AL MPPT30 20A	WS- AL MPPT30 25A	WS- AL MPPT30 30A
system voltage	12V / 24V / 48V
Max Curry Current	20A	25A	30A
Output voltage scope	12V~40V / 24V~80V / 48V~110V
overpressure protection	17V / 34V / 68V
HVD	13.7V / 27.4V / 54.8V
undervoltage	10.5V-11V / 21V-22V / 42V
temperature compensation	-3mv//cell
open circuit losses	≤30mA
Light control	light control turn on + light control turn off
Light control + time control	Light control turn on/off + time control turn on/off
The step of time control	0.5 hours started,half an hour of one grade ,up to 10 hours
ambient temperature	-25-----+55
quiescent current	24mA
control mode	PWM