I recently bought a LED replacement for the #93 taillight my 30 year-old bedside Tensor lamp uses. I like it. I have not found a good source for #93's in years and have been paying way too much at auto parts stores..
The added fun part is I have a fan; and the LED strobes such that the fan almost freezes. Obviously the fan is not a synchronous motor and has slip, so it seems to drift. But it still is an interesting side effect.
-- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
Automotive #93 implies that the LED might be intended for DC operation; are you sure it's protected against reverse bias, as in a transformer type (Tensor) lamp's AC operation?
It claimed to be, and if it wasn't, it would likely have died a few ms in....
Plus, looking at some of the chipsets, they expect AC in..
-- A host is a host from coast to coast.................wb8foz@nrk.com & no one will talk to a host that's close.......................... Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
It's surely not healthy, but LEDs can stand off fairly remarkable reverse voltages. I accidentally had one reverse-biased 24V--a humble red SMD part--and it was nice enough to not break down, degrade, or even seem to care.
Cheers, James Arthur
there's no polarity on incandescent bulbs so the LED retrofit must have have an integral rectifier.
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