Lightbulb problems: fixture or wiring?
All of my light fixtures use the LED so-called “lightbulbs”. The type that mine uses are all 3x5 LEDs. Most of them work fine. But the one over the kitchen sink keeps burning out bulbs quickly. AFAIK ...
Forum Discussion
2oldman wrote:
Roy said cheap leds don't have much voltage tolerance, and your converter is the source of fluctuating voltage.
Sort of.
I think Roy was talking cheap LEDs typically do not have built in switching power supplies for current regulation of the LEDs. Instead they use a simple resistor and some yet use NO resistor or switching regulator (three LEDs in series which each LED drops about 3.7V). These are the ones that typically do not tolerate much voltage change.
There ARE also CHEAPLY MADE LEDs which use poorly designed switching current regulators. These ones typically are the ones that create tons of RFI but also may not tolerate a lot of voltage change.
Then there is the ones that have PROPERLY WELL DESIGNED switching current regulator.. These ones do not come cheap and have no issue with 9V-30V..
Then there is the thousands of bargain basement Chinese manufacturers which peddle poorly designed, made, no Quality Control LED modules from not even "seconds" but thirds and fourths picked up from the cutting room floor parts that should have been put into the garbage.. THESE are most likely what the OP bought!
