What does 켜짐 look like on Samsung?

On Samsung it is the design shipped in One UI 8.5, shown above at full size. Older revisions are listed beneath it.

When did Samsung add 켜짐?

Samsung first drew 켜짐 in Touchwiz 2.0, released 2013년 4월 26일.

Samsung Electronics has shipped 26 versions of 켜짐. Each is dated, so you can see when the design changed.

Samsung Experience 9.0

Samsung shipped a new design for 켜짐 in Experience 9.0, released 2018년 2월 11일. The previous design is shown beside it.

✳ marks a release that redrew this emoji. The rest re-shipped the design unchanged.

What does 켜짐 look like on Samsung?: On Samsung it is the design shipped in One UI 8.5, shown above at full size. Older revisions are listed beneath it.
When did Samsung add 켜짐?: Samsung first drew 켜짐 in Touchwiz 2.0, released 2013년 4월 26일.
How many times has Samsung redrawn 켜짐?: Samsung Electronics has shipped 26 versions of 켜짐. Each is dated, so you can see when the design changed.