lights all pulsing, and some LEDs buzzing?

[SunEagle]

Here''s an article about generators and load issues caused by non-linear lighting:

http://www.screenlightandgrip.com/html/emailnewsletter_generators.html

They go into quite a bit of detail of what happens and why

I can sell you harmonic mitigating hardware to stop that issue.

Oh wait. I am not allowed to do that on this forum.

[Mike90250]

Here''s an article about generators and load issues caused by non-linear lighting:

http://www.screenlightandgrip.com/html/emailnewsletter_generators.html

They go into quite a bit of detail of what happens and why

[Sunking]

Hi all,

Running a 12V decent battery, 2 good big 12V panels, decent regulator, and a cheap 400w inverter. Not sure why LEDs and flourescent bulbs are buzzing and even plug in fairy lights are pulsing.

You answered your own question. Throw your Inverter in the trash and get a good True Sine Wave inverter and pray it does not Buzz the LED's. No guarantee because you likely also have cheap LED's with cheap drivers built inside of them. Even expensive Cree LED's will Buzz and burn up expensive Inverters.

If you are going to run LED's on Solar, use 12 vdc LED's silly and avoid all those problems.and expense. LED's are extremely non linear loads and wreak havoc on AC systems. They are hard on generators and especially hard Inverters. Generators and Inverters do not play well with non linear loads or high power factor loads like motors and electronics. Putting LED on a a cheap modified Sine Wave Inverter is the worse possible thing you could have done. They will burn the Inverter and themselves up pretty quick. That Buzzing sound you hear is parts vibrating and beating themselves to death.

In short you got exactly what you asked and paid for. If you want fix it get rid of the Inverter and replace the LED's with 12 volt DC units. I take that back. You do not have to replace anything. Keep what you have. It will quit working soon and you can throw it all away when it quits.

[Mike90250]

.... a cheap 400w inverter. ....

Cheap inverters are mod-square wave, and that's causing the buzz

pulsing, could just be cheap inverter not regulating well.

[jflorey2]

Running a 12V decent battery, 2 good big 12V panels, decent regulator, and a cheap 400w inverter. Not sure why LEDs and flourescent bulbs are buzzing and even plug in fairy lights are pulsing.

In the other nearby solar house the fairy lights don't pulse.

I have no dimmer in the house.

What is the reason for this?

Could be:

Bad/overloaded inverter
Some load (like the fluorescent lights) slamming on and off, making other loads flicker
Weak battery plus PWM charge controller (will see voltage rise and fall as PWM cycles)

[dark86]

Hi all,

Running a 12V decent battery, 2 good big 12V panels, decent regulator, and a cheap 400w inverter. Not sure why LEDs and flourescent bulbs are buzzing and even plug in fairy lights are pulsing.

In the other nearby solar house the fairy lights don't pulse.

I have no dimmer in the house.

What is the reason for this?

Please help.

Thank you