YX805 Solar Charge Controller LED Type

[Ken1]

Hi, I would like to know what type of LED's are compatible with the YX805 solar controller chip. I have several garden solar lights with this chip and the LED's have appeared to have failed in them and if replacement LED's are dirt cheap, I would like to try to fix these as they are relatively new and have not had much use.

 

[Diver300]

It’s probably not critical. You should match the current and voltage. The voltage doesn’t have to be exactly the same. You can use an LED at a lower current than its rating, which will improve life.

Most driver ICs have a resistor to adjust the current and it’s a common hack to reduce the current to improve life.

 

[Ken1]

I should have mentioned that the units are powered by a 1.2V AAA battery and there is a 150uH inductor in series with the LED.

 

[Diver300]

I should have mentioned that the units are powered by a 1.2V AAA battery and there is a 150uH inductor in series with the LED.

That would be for the boost regulator. That is a standard way of driving LEDs