I want to use a wall wart to replace 3 AAs in a string of micro lights.
I have a wall wart that is rated at 3.7 volts, but it measures 9 volts with no load (it was originally for a cell phone).
How can I regulate that wall wart so it puts out 4.5 (or a little less if I want the lights to be not as bright)?
(I did a ton of searching and while there are many threads online that address similar issues, I found none to answer my question).
Thank you!
I have a wall wart that is rated at 3.7 volts, but it measures 9 volts with no load (it was originally for a cell phone).
How can I regulate that wall wart so it puts out 4.5 (or a little less if I want the lights to be not as bright)?
(I did a ton of searching and while there are many threads online that address similar issues, I found none to answer my question).
Thank you!