Searching for L E D headlight Hack?

[Getter-Done]

There was a thread on the 67-72 build forum that I have tried
many different search words for.
And I cannot find it again.

So I decided to post a Question
About what the member done.

Has anyone removed the tabs on a sealed beam headlight,
and Then installed the small Led pigtail lights.

What I am looking to do is,
Put 4 little Led's in a mower that I seldom use the lights but I want them to work if I need them.
Here's pics of the lights.

Thanks in advance for your help.















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