LED flicker

[bernardgreen]

The output waveform is a 12VAC sinewave

The output has two terminals. Measuring voltage with respect to one of the terminals does the voltage on the other terminal :-

a) vary between +12 volts and -12 volts

or

b) vary between 0 volts and 24 volts

 

[aptsys]

Between +17V and -17V

 

[bernardgreen]

Between +17V and -17V

Then it looks like true AC 12 volts RMS ( 17 peak / 1.414 = 12 RMS )

 

[winston1]

I've now got hold of another one. I can confirm that with an LED it works and does not cause an increase in power or overheating unlike other SMPS I've tried.

Not sure about the reliability however.

 

[hard-work]

I've now got hold of another one. I can confirm that with an LED it works and does not cause an increase in power or overheating unlike other SMPS I've tried.

Not sure about the reliability however.

This transformer does not state specifically it is for LEDs, but does the business. So, what is your overall conclusion?

 

[winston1]

This SMPS does not state specifically it is for LEDs, but does the business. So, what is your overall conclusion?

It appears to work (apart from possibly reliability problems). I would still go for a DC power supply designed for LEDs or a toroidal transformer. After all you get what you pay for.

 

[bernardgreen]

or a toroidal transformer.

which provided the lamps can operate on an AC supply is the best option.

 

[securespark]

 

[hard-work]

Yes, this thread appears concluded and now asleep. I hope you learned something from it.