Streetlight Image


running landscape lights off solar


i am new to solar. started with a renogy controller and 4, 10 year old Brunton solar panels. the renogy could not handle the volts, so sent it back and got the Victron MPPT 100/20 48v. Which was a huge step up in capability and ease of use. For some odd reason the panels say 24 volts on then but output up to 48v.

I have my 4 old Brunton 24v solar panels run in parallel, and an Expert Power Li 12v/20Ah battery hooked up to the Victron. First test charging today in full, but low sun, was a success, giving 15w.

My goal is to hook 7, 10 watt/12v LED landscape lights to the power out on the controller.

Do I need fuses anywhere and what rating?

Any other possible issues?

Using an online calculator, I should be able to run these lights for 3 hours after sunset before depleting the battery, which is perfect. Not sure the battery will be fully charged the next day, even if full sun. Maybe I need a bigger battery or better/newer panels?

Thanks in advance and apologies if these are dumb questions.

spacespiff asked

0 Answers

how to enable Streetlights function on Mppt 250/100 using colorgx

Hi all,My system is ESS based on , I have mmpt 250/100 charger together with Quatrro 10kVA and Li battery bank. All of them are connected to Color gx device.2 mppts are connected via port on color gx and 1 mmpt at usb port of it . I am using mmpt relay output to trigger another relay coil for my loads (lamps) and want to have my them on based on:
1- Battery voltages ( to ensure battery life)2- from Sunset time until sunrise

I have turned on street light function on all mppts , I will attach some settings below.
I read the manaul where it says Tx port can have multiple options.


I have chosen Normal Communication since all my devices are connected at color gx and DVCC is enabled on it.


I see external control written inside Victon connect app.


my question is how can I achieve streetlight fn working in this scenario? is there tx pin inside port from mppt end that send signal ot color gx port end to turn off relay based on sunrise/sunset conditon ?

I have tried testing but the relay state only changes (open or closed) based on battery voltage conditon that I have set and not based on street light . I want to take care of both




solartech12 asked
Alexandra commented ·

2 Answers

Streetlight function on Smartsolar MPPT 250/100

I have a Smart solar 250/100 Charge controller for a 48V battery system . my loads are flood lights which are above 4kW .
since this controller does not have a dedicated load output terminals so I am using external relays . I want to use the relay port on the charger to drive the load external relay. recently I came to know about street light function inside victron app but I am not sure about its real used-case scenario.

Can anyone guide me whether I can use this function to drive the relay port on the charger which can then trigger the external relay that will turn the load circuit on . My aim is drive my 4KW load at night time only and also take care of battery capacity too .

solartech12 asked
solartech12 commented ·

1 Answer

Load Output on 75/15 turns on and stays on regardless of User def. Algorithm 1 settings



I have an entryway sign light (0.5A waterproof led strip) controlled with the "Streetlight" function consuming between 5Ah to 6.7Ah (60Wh to 80Wh) per night, and then have Load Output - User def Algorithm 1 set to the above settings in the image. The jumper has been removed from the VE Direct port, and Victron Connect has been used to adjust all settings.

The Load Output disconnect rules appear to never override the Streetlight function as the manual states they should.

The light turns on at sunset via the Streetlight function and turns off at sunrise fine. However, if get 2 or 3 cloudy days in a row (which isn't enough for my 45Ah repurposed AGM battery to supply a full night, without going below desired voltage threshold (after second night it is 11.4V,after third night it is 10.5V) it keeps turning on the light via the Streetlight function, even if the battery is below the "on" threshhold of 12.2V and leaves the load connected when it is below the "off" threshhold of 11.5V.

I hate to just assume that Load Output circuitry is damaged, as nothing has happened to the controller that would cause this. Anyone experienced this Load Output behavior on such a small load

myansweris42 asked
rjenningsuk answered ·

3 Answers

Streetlight Function MPPT 75/10

Hello, I have a setup of a MPPT 75/10, an 12V AGM battery 38Ah, a monocrystalline solar panel 30W/12V and a 12V DC Lamp.

I'm trying to simulate a streetlight system using the MPPT (lights on at night/ lights off at day). I'm using a VE.Direct USB cable to connect to my PC and to change the settings with the VictronConnect app. What I am trying to do now is to understand how the Streetlight function within the VictronConnect app works. I've understood that Load Output function serves as a "Protective Function" for the battery, in case it gets overdischarged or when the voltage goes below a specific value (conv. and user def. algorithms). Also I've read that the "Load Output" function has priority upon the "Street Light" one, which means that if the battery gets overdischarged at night, the lights will still go off and the "Streetlight function" won't work until the next cycle.

I've read the manual: , but there are still things unclear for me.

1) How the MPPT gets the time of the sunset/sunrise if I choose the "Switch on till sunrise" and "Switch off" at sunrise options and what is actually happening behind the Applications Interface? Is the app accessing some API to get the sunrise and sunset time according to my geographical location? What happens if I change the time and geographical position of my PC?

2)How the "Night detection voltage level" and the "Day detection voltage level works"? It sais that it can be used to adjust the detection to match the panel configuration. As I understood it tracks the Solar Panel voltage and it turns on and off the light when the voltage is below or above the inserted values by the user. What I tried was inserting some values in these sections: (11.4V for night detection, 11.9V for day detection). During the day the panel gives apx. 12V so that means that at night the value will decrease below the 11.4V, the MPPT will understand that is night and the lights will turn on. I haven't tried it outside in real conditions, but in the room, if I flip over the solar panel and the voltage gets to 2-3V still nothing happens.

3) How these 2 options stated above work together?

Do they have the same priority in the code or the sunset/sunrise option has priority upon the voltage level detection. Because even if I flip over my panel in the room (trying to simulate night) nothing will happen. I've also tried plugging out the solar panel from MPPT to simulate pitch-black but still nothing happened. Does it mean that I won't be able to simulate the night since the night/day detection isn't working separately from the sunset/sunrise option?

For example I chose these settings:

At sunset: Switch on till sunrise

At sunrise: Switch off

Night detection voltage level: 11.4V (according to the min. detectable value from the manual)

Night detection delay: 0m

Day detection voltage level: 11.9V

Day detection delay: 0m

Gradual dimming speed: 0s/%

Mid-point shift: 0m

Should I expect that with these options, somehow at sunset time the DC lamp wil turn on and at sunset will turn off? What are the night/ day detection voltage level option used for if they can't work separately from the sunset/sunrise function.

Do you have any idea of how can I make it work?

k1dw1d asked
kb9nvh commented ·

2 Answers

Bluesolar 75/15 streetlight sunset correct but delay not working?
  1. My bluesolar 75/15 streetlight function correctly turns on the load at the sunset voltage but it seems the delay time I put in is ignored? My load is set to "always on" and streetlight is set to sunrise 26v and sunset 4 volts. Sunset stay on until sunrise with the delay for sunset set for 15 minutes. The load is turned at sunset voltage with no delay when voltage is reached... What am I doing wrong? Thankyou

kb9nvh asked
kb9nvh commented ·

1 Answer

Streetlight Function Help

I have a 100/50 Smart controller and am trying to figure out how to use the Streetlight function. The manual does a very poor job explaining how to achieve this. I do have the TX cable as well as LED lights. I understand that I need a "driver?" Can you show me what an appropriate driver would be? Does the Victron unit provide all power for the LED strip or does the driver act as a kind of relay?

sv-jean-anne asked
maxxmanic edited ·

2 Answers

Smartsolar 100/20 virtual load vs load port.

Hello. I got a smartsolar 100/20 and use the streetlight function for a hunting light, but I need power for an IP camera 24/7 (if battery voltage is ok)

Is it possible to have the load port only protected by the load output configuration, and then control the virtual load with the streetlight function, not affecting the on board load ports?

Johannes Hodne asked
wkirby answered ·

1 Answer

SCC010020020 PWM short circuit fault

I have 50 of these PWM installed for street light applications.

when the sun drops and PV voltage drops the PWM set on “L” activates the load output, this is connected to a 150w pure sine wave inverter. A 50w 220v AC LED is running off the inverter.

On several the load switches off flashing fast indicating short circuit.

But it is intermittent.

If it does trigger short circuit, it won’t recover that night, it may work correctly next day, but may fault again days later.

Any ideas

brad-australia asked
Daniël Boekel (Victron Energy Staff) commented ·

1 Answer

SmartSolar MPPT 75/10 for Load and Light Control

Can the Light dimming output or some other means used so a SmartSolar MPPT 75/10 can control a light using the time of day functions, and independently switch off a load (and the light) based on battery voltage? Is there another simple solution to this issue? Or is two SmartSolar MPPT 75/10s one controlling the light and the other the other loads the best solution?

solarwizard asked
solarwizard commented ·

2 Answers

Day use only of MPPT 100/20 for fan

I am using 1 240W solar panel to charge 2 90amphr deep cycle marine batteries and blow a 12 V / 5.1amp fan during the day, through a MPPT 100/20 Victron Charge Controller. I would like the fan to run from sunrise to sunset, or a fixed number of hours during the day (~12hrs), but not at night, while controlled by the charge controller. I am having trouble using the Streetlight mode to achieve these settings. Any suggestions on how to use the charge controller to only power the fan during the day would be greatly appreciated!

hs2019 asked
ripper answered ·

1 Answer

What is the streetlight function

Hi everybody

What is the streetlight function. Is it possible to produce current with it ? I confess I've not understood this function. Thanks.

nexo asked
nexo commented ·

1 Answer

MPPT 75/15 lights not turning on

Hello, I've just installed an MPPT 75/15 connected to 2 Victron AGM 130AH batteries for a 24V set up. I've got 4, 10W DC LED lights wired to the load section of the controller, and my solar panel is all hooked up. On the bluetooth app, solar and battery seems to be working fine, but I am having trouble getting the lights to go on. I'm hoping to set it up in "streetlighting" mode, but I really want to test the system without waiting around until it is pitch black as this is a commercial construction site and everyone leaves at 4:30pm. Can someone help me test whether my lights are working with the system?


jdalbora asked
jdalbora commented ·

2 Answers

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