quadratic_elation
Newbie level 3

Hi guys,
I have attached a diagram which was printed on the label of an ignitor from a HPS security light. I understand everything but the connection points on the transformer.
You can see in the diagram, there are 3 connection points on the transformer- How do they correspond to the 4 normal points (i.e. 2in [step up/down] 2out) on a 2 coil transformer?
Thanks for looking.
I have attached a diagram which was printed on the label of an ignitor from a HPS security light. I understand everything but the connection points on the transformer.
You can see in the diagram, there are 3 connection points on the transformer- How do they correspond to the 4 normal points (i.e. 2in [step up/down] 2out) on a 2 coil transformer?
Thanks for looking.