LED and USB connection advice.
i am a serial restorer and upcycler have done many lamps previously but they’ve all been 240v (UK).
i now want to venture into LED lamps powered by USB. USB is 12V which means i need a transformer….or do i?
my question is the following: if i buy 12V G4 LED lightbulbs with their corresponding socket am i able to simply wire them up using a USB cable and that’s it? I am not an expert but i was thinking if the bulbs are already 12V i wouldn’t need a transformer from 240V to 12V? any advice is greatly received. I’d be looking to run these lights from normal power banks and/or laptop USB ports. (the reason i want to avoid a transformer as it’s a bulky item and the lamp i have in mind is small, the transformer will just ruin it)