I’m trying to ‘hack’ a LED Fire-effect light bulb to work on a 9v battery.
Using a multimeter I can see that the bulb converts mains voltage to 5v. I’ve got my hands on a 9v-to-5v voltage regulator (spec sheet - https://dm-components.com/eBay%20pdf/AMS1117.pdf) and did some experiments.
When I plug my multimeter into a simple battery circuit I get 7v (the battery I’m using must be a little flat).
However, when I put the multimeter into the voltage-out part of the regulator, I get 6.3v…not the 5v I’m expecting.
What am I missing? And any advice for a newbie to electronics on how to convert 9v battery to 5v?