Is there a way to decrease voltage output from a 120VAC transformer without adding more cells?
I think your terminology is a little confusing. “Lucy b” Has the most appropriate answer for you. I would have to second “Martin” Some LEDs will burn out when reveres biased. Ie powered on AC. But I don’t think you have to worry too much about that right now as a small diode wired to the output of the transformer will rectify that! A small 50 Hz choke would do the trick, but that would need some calculations I fear you may not be familiar. Alternative you can buy dimmer switches for transformer applications. That way you could lower the input voltage to the transformer.
