[RedDevil]

I have bought several (> 20) LEDs for my house, about 6 of them failed over the years.
I just kept them.
Most of the failed ones are the 36 SMD LED types with small circuit boards.

I took one of the failed ones apart.
It has 5 SMD LEDs per circuit board.
Typically one of those boards has one LED with a black dot, the others are fine.

Here are some failed LEDs, including the one I took apart.

You can see them, fogged up and all. You cannot smell them (you need IE 13 or higher for that)
They have a typical burnt chemical stench that lasts for months. if one blows you have to take it outside and vent the room.

I found I can run the 5 LED boards at 12 to 14 Volt with no additional electronics!
(but use a fuse anyway)
Could not do anything useful with the 6 LED end plate, but I don't care about right now.


My daughter has a Hello Kitty LED night lamp that ate a batch of batteries each week.
I hooked it up with a telephone charger, which seemed to work fine but ultimately killed the LEDs.
I replaced the LEDs with one of the circuit boards and the charger for one that delivers 12V, and presto!
Hello Kitty shines again.

Now I'm tempted to build LED DRL's etc. using my failed LED bulbs