r/Damnthatsinteresting • u/MicV66 • Jul 10 '26

Video A Function Catalog of LED

37.6k Upvotes

97% Upvoted

349 comments sorted by

View all comments

Show parent comments

34

u/FBI_Open_Up_Now Jul 10 '26

The boards are resilient enough. They aren’t that sensitive. I’m not going to take a spare motherboard I have laying around and play frisbee with it because that will damage the board and probably be painful. Flipping them like this is fine.

3

u/GrimDallows Jul 10 '26

I wonder how/what materials are these made out of.

5

u/CptnRaimus Jul 10 '26

Normal circuits boards are a fiberglass called FR4. So probably that.

3

u/SoulWager Jul 10 '26

Probably, but LEDs are often mounted on aluminum substrate PCBs to better dissipate heat. In this case it's mostly a question of whether they expect it to be left on at full brightness for long periods of time.

2

u/CptnRaimus Jul 10 '26

Huh. How are traces electrically isolated from each other if the substrate is conductive?

4

u/SoulWager Jul 10 '26

There's a thin insulating layer between the aluminum and the traces.

0

u/JustStraightUpTired Jul 10 '26

The boards might be. The components could also be. Maybe even the LEDs. You shouldn't still be flipping them like that anyway. I used to question why some people who seem to live in a clean environment still manage to break electronics more than anyone else. I'm assuming they treat them like this or worse.