Had a headlight out and had a replacement in the garage waiting for the next (this one) to fail. I thought that LEDs were supposed to last much longer than incandescent bulbs? Had a bit of difficulty with one of the headlight mounting bolts (the bottom one that is buried). All better now...........
Interesting, yes, quality LED headlights should last a long time.
Some of the concerns though are heat, generated from the LED chip to generate actual light.
Old school halogen bulbs do run hot. However as everyone knows, that heat from the halogen is on account of passing electrical current thru a fine wire, until it glows to produce actual light.
LED though is more susceptible to decreasing output as the diodes operate, getting hot without proper cooling.
Early, and possibly still today, LED headlights used a stacked pile of braided fine wire electrical braid. The intention being, the braids would extract the heat, and keep the actual LED cool enough to remain efficient, bright, all while having longevity.
These days, it is more common to see a finned heatsink. The heat sink is expected to have a free flow of cool air moving across the cooling fins. Placing a finned type LED inside a closed cover headlight assembly can result with the LED running hot, decreasing output, and shortening life.
Many high output LED headlights utilize a small brushless fan with one moving part, spinning on ball bearings. Essentially the same, but smaller size, as we have all used in our computers and laptops. Those fans, in computer survive a dusty life, running for tens of thousands, if not more hours without complaining or failing.
The fan cooled LED headlights, force cooling air over critical LED components, keeping them cool, efficient, and long lasting. To clarify further, inside the headlight housing, the air circulates, and is able to utilize the headlights cool plastic shell to dissipate heat. Folks often state they do not want fan cooled LEDs believing the fan is the weakest link. Honestly overheated LED electronics from lack of good cooling is the weak link.
Yes, for many, many years, our Spyder has run high quality, fan cooled LED headlights and driving lights without issues.
So Lew, just curious, what type cooling method is utilized by the LED that failed?