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Old 09-15-2021, 06:39 PM   #10
redwire
Badcaps Veteran
 
Join Date: Dec 2010
City & State: Alberta
My Country: Canada
Posts: 2,204
Default Re: A 2200lm 7057 LED car lamp...

It looks like 3 LED's in series strings and 16 groups of those, for 48 LED. It's to get ~9.6V LED and then resistors to drop the 12-14V down for that.
That looks like about 110mA/LED and dissipating maybe ~16W plus the resistors ~5W.
It's just the heat is too much if they were lit all the time, i.e. a brake light in a traffic jam.
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