Hello!!!

Can someone answer the following please:

If an LED lamp is flickering, is it possible to know without testing if the problem is with the LED or the driver?

Thank you

 

No.
Last week, my globe light in the living room began dimming at random times. Can I tell if it's the dimmer without testing anything? Even with nearly 50 years of experience?

The porcelain end on the bulb had cracked. You can't guess that one even if you're good at this!

 

My first guess for something like flashing would be the LED

If the driver is faulty it will eirther work or no (meaning the light will be oN or OFF) not flashing

Is this wrong?

 

Do you want some of the members here guess along with you?
I guess it's a loose, dirty connection.

We can guess all day, but it's not going to get fixed until you actually look at it with your eyes, and probably some variation of a voltmeter.

 

LED drivers that I've used do tend to "flicker/flash" when the forward voltage of the LED circuit is outside the output voltage range of the driver..
And you can measure for that so you have one less guess....

 

Based on the information provided, my guess is that it's not the LED and that the LED is reacting to variations in it's driver current...