What is the name of this transformer

Smajdalf September 5, 2021, 11:57am 77

12 LEDs in series glow from a 9V battery? I doubt something like that exists.

Topic		Replies	Views
Halogen Transformer Explanation of Circuit General Discussion	17	12547	May 5, 2021
Transformer Problems General Electronics	39	4978	May 6, 2021
Halogen transformer not working General Electronics	75	6073	December 22, 2021
How Many amps does this transformer output? Motors, Mechanics, Power and CNC	45	15424	May 6, 2021
Elettronica di base: problemi con LEDs Cree XR-E e trasformatore Relco RN1349 Generale	8	5834	May 7, 2021