LED Failure

[TigerhawkT3]

Chip weevils?! you must be joking, right?
Please tell me that you're joking!

Yes. The above-linked Wiki entry refers to 5mm LEDs and now Luxeons getting dimmer and needing to be replaced, but it's because of brighter and more efficient emitters, like the XR-E. Granted, LEDs do degrade (especially non-high power ones), but that's largely due to heat damage.

Once more: "chip weevils" are a joke. You can laugh now.

 

[yellow]

The time when modding was usual because there were no decent makers (say: 2 years plus ago, just be4 Fenix entered), led failures happened often.

Take a white power-Led, reverse its polartiy and it immediately dies, even with the "right" voltage, no matter if direct driven or when just reversing the contacts from a driver cirtuit.
immediately and ultimatively

... and so do most drivers (sure, some might be protected, but better just not to do)
(also quite a bunch of drivers die, when power is applied without led connected. So be careful when modding)


other failure: quick led degration from bad heatsinking

 

[Scott_T]

Dont forget sharkbite, bear attack or children under 5

 

[richardcpf]

Normally led wont fail if driven at correct V and A, in most cases is the driver which fails.

 

[Jarl]

Take a white power-Led, reverse its polartiy and it immediately dies, even with the "right" voltage, no matter if direct driven or when just reversing the contacts from a driver cirtuit.
immediately and ultimatively

... and so do most drivers (sure, some might be protected, but better just not to do)
(also quite a bunch of drivers die, when power is applied without led connected. So be careful when modding)

Not true. Less than 5V and the LED is fine. It's a light emitting DIODE. Resitance in the light emitting direction is very low (~4 ohms, though resistance increases as current decreases). Resistance in the not-light emitting direction is very high, blocking any current. However, if the voltage is too high then it'll short the LED and destroy it.

Dont forget sharkbite, bear attack or children under 5

ROFL :devil:

 

[okbohn]

Dont forget sharkbite, bear attack or children under 5

Children under 5 can destroy anything.

 

[Scott_T]

Dont forget sharkbite, bear attack or children under 5

That's from here http://pelican.com/support/guarantee.php in case you missed it.