What happens when I try to use a 12V rated LED bulb in a 3.7V light fixture?

[Martaine2005]

I can’t find any information except U3 is a constant current LED driver.
I’ll leave this for the experienced forum members.

Martin

 

[andonym]

Hmmh, no inductor there (at least not obviously). Not a step-up at all? Knowing what the ICs are as rquested by Martin will help to clear up matters.

I can’t find any information except U3 is a constant current LED driver.
I’ll leave this for the experienced forum members.

Martin

Thanks Harald, thanks Martin. I'll leave this thread with the assumption that it is a 3.7V lamp, and the LED is a 3.7V LED.

All the insight is much appreciated!

 

[Bluejets]

All the insight is much appreciated!

Most of what I see is guesswork due to lack of information...not insight.