Datasheets of components in starter kit available


I've started using the starter kit and stumbled upon the text, that "23 mA is just above the current for the LED" in the first project.

I've searched through the book and didn't find datasheets for the components where I could get such vital information.

How can I get the datasheets belonging to the components?

When I search for "5mm round red led", there are so many hits that seem to differ, that I am not sure, I will hit the right one.



Thank you, that is exactly what I've searched for. Would be nice, if it would be mentioned in the starters guide.