Has anyone monitered their LEDs PAR over time?

FX CharityCorals · Apr 20, 2013

Im curious if anyone has kept track of their PAR readings from the time they got their LEDs to now?
I know manufacturers say they don't lose PAR like T5 and Halides, but you can say anything you want I would like some data to support that.

If you have, post numbers and the type of fixture. Thanks Jason

jedimasterben · Apr 20, 2013

As long as the LEDs are kept cool, they will outlast their L70 rating by a good margin, the power delivery circuits and fans will fail before they will.

redfishbluefish · Apr 20, 2013

This is very interesting.

I now run LEDâ€™s over both my tanks. But back when I had T5s, I asked the same question about seeing numbers. Everyone SAID they lost PAR over time, but no one could provide the numbers. I asked on a couple sites and got nada! So like a good little sheep, every year I would change out the bulbs.

Now about a year or two ago I put 11 watt spotlight LEDs in the cans in my kitchen (Lights of America brand). The original light was very white and extremely bright. Last month my wife was complaining about how dim the counter had become. So Iâ€™ve now switched back to compact fluorescents in the cans. So for these LEDs, there definitely was fall off over time.

Iâ€™ll be watching this post. Thanks

FX CharityCorals · Apr 20, 2013

jedimasterben said:
As long as the LEDs are kept cool, they will outlast their L70 rating by a good margin, the power delivery circuits and fans will fail before they will.

Ok but does anyone have numbers to back that up?

FX CharityCorals · Apr 21, 2013

So nobody has measured their par since setting up their lights?

jedimasterben · Apr 21, 2013

PAR meters are a rare commodity among hobbyists, so I wouldnt expect to get more than maybe one reply from someone that has.

ronnie · Apr 21, 2013

I'll test my radions when I get the new tank up and going. I ran them for about three weeks on my old tank just so I could see them and get them set up. I will borrow a PAR meter and test them out and then do it again in six month intervals.