Cree vs Bridgelux......what say you?

[BBQHILLBILLY]

hmmm 85x33.8F=2873degrees Fahrenheit. Thats insane temps. Temps on Mercury are 400C and Venus is 800C. I dont know how they can validate those temps.
when would you ever get that hot? Everything around the LED would melt. Im confused. something weird in these stats.
stat needs to be cited

LOLOL obviously im totaly wrong, its 185 degrees farenheit

[Zack]

Lol I saw that and was like... um.... its not that hot lol

[350gt]

Lol...

[alton]

In the electrical field we rate our wire, gear, devices by 60C, 75C, 90C, and 105C. Most items use 75C and most wire is rated at 90C. So what ever the item is it can handle the heat up to that temperature before damage. 85C = 185F whereas 25C = 77F. If the C means something besides the operating temperature the LEDS can handle "Whoops" I made a mistake. One of the questions I have asked my reps is how can a LED pole light standing in a parking lot with a temp of 140 degrees F continue to operate fine when our aquarium lights have to have fans?

[BBQHILLBILLY]

both bridgelux and cree LEDs are tested without failure at 85C, some are lower. Just pull the data sheet, for each LED. A lot of good info out there.
I dont know the source of the one presented here but there is plenty of data sheets out there.

correction tested at 1000 hrs

[BBQHILLBILLY]

heres something

Bridgelux projects that it’s family of LED Array products will deliver, on average, greater than 70% lumen
maintenance after 50,000 hours of operation at the rated forward test current. This performance
assumes constant current operation with case temperature maintained at or below 70˚C.


and the source

http://bridgelux.com/assets/products...yDatasheet.pdf

I think thats a good quote

[350gt]

Just saying if they were better, ran cooler... I would think the "big" companies would be using them more often as they are cheaper then the crees..... It would increase their profit!

[BBQHILLBILLY]

they are making a lot of profit with the cree fixtures, the LEDs retail are low cost, wholesale lower
but thats not the topic, which is better and its depends on the application

[350gt]

I dont think he asked about application, you brought that up...


Its proven cree is somewhat better.....

not that bridgelux are bad..... But not as good....

[350gt]

If i pay top dollar for a fixture, i want the best in there...... And thats what companies like ecotech, vertex and aqua illumination deliever....