radion par over time?

[mayjong]

interesting, i was just curious...

i have no doubt the led fixture/bulbs will run for 50,000 hours. no doubt at all.
heck, ALL other lights we use will run for a very long time, too.(how many bulbs have you used until they actually die? -0- ) but we replace them because the par level is no longer useful for us.

just wondering the same thing about the radion. i like the chart provided above, that is pretty encouraging.

 

[sanababit]

Well 50000 hours is not bad, if my calculations are correct i run my leds 10 hours with diferent intensities throughout the day, it comes out to 13.69 years of use, so not bad, and i can always upgrade them to the radion 9 when these go out, btw the highest intensity i got is for 3 hours at 85% overall, maybe in 6 years i will bump it to 100% if the par goes down

Sana

 

[mayjong]

Well 50000 hours is not bad, if my calculations are correct i run my leds 10 hours with diferent intensities throughout the day, it comes out to 13.69 years of use, so not bad, and i can always upgrade them to the radion 9 when these go out, btw the highest intensity i got is for 3 hours at 85% overall, maybe in 6 years i will bump it to 100% if the par goes down

Sana

maybe i'm not being clear...
i believe the lights will shine some sort of light for 10 years but what will the PAR be at year 5, 6, 7, 8, or 9?
i have t-5 bulbs that are 7 years old, and they still work (they shine some sort of light), but they are useless for a reeftank. the PAR is non-exisitant....

 

[sanababit]

Well if our friend On top that showed us that little par table is correct, losing 25 par a year is not bad, so i am not worried here, i am not a fanboi, and if my electricity bill wasnt that high i would go back to t5 in an instant

Sana

 

[BoxesOfTheSea]

Well if our friend On top that showed us that little par table is correct, losing 25 par a year is not bad, so i am not worried here, i am not a fanboi, and if my electricity bill wasnt that high i would go back to t5 in an instant

Sana

At 25% loss per year, I think that comes to just under 58% total loss over 3 years. At that point I would expect to replace the light. About $650 to replace the light after 3 years. Do t5's use that much electricity. Maybe my calculations are incorrect.

 

[cali9dub]

At 25% loss per year, I think that comes to just under 58% total loss over 3 years. At that point I would expect to replace the light. About $650 to replace the light after 3 years. Do t5's use that much electricity. Maybe my calculations are incorrect.

In 3 years that LED fixture will be old news anyway. It's a pretty fluid market right now and doubt that these current LED fixtures will be as relevant as they were when they were introduced. Hopefully they will but it seems like there are pretty steady upgrades...like once a year.

 

[ghostman]

In 3 years that LED fixture will be old news anyway. It's a pretty fluid market right now and doubt that these current LED fixtures will be as relevant as they were when they were introduced. Hopefully they will but it seems like there are pretty steady upgrades...like once a year.

If this is true, then the depreciation of the led system makes it an even worse choice. How will a 3 year old led system that has lost its power compare to a 3 year old T5 unit that needs new bulbs? I'd buy an older ATI powermodule in a second.

 

[BoxesOfTheSea]

Wow. If a light was "old news" but still putting out the original PAR and spectrum, I wouldn't spend $650 just to have the latest and greatest, especially if my corals were doing well. However, I don't want to be pushed into buying a new light because my current light is only running a 42%. I want to spend money on living creatures to fill my tank, not buy equipment just to have the latest and greatest.

Ghost makes a good point. If the LEDs, regardless of brand, are really losing 25%/year, I will not buy another LED fixture. A Gen 3 Pro is over $700, I think. If I had to buy a new one in 3 years that's about $30/month for a light fixture.

 

[cali9dub]

Yup. That's one option.

 

[sanababit]

Where do you guys get the 25% loss a year, its 25 PAR or 2.18% a year, read the table guys

Sana

 

[Eastamherstbias]

Wow. If a light was "old news" but still putting out the original PAR and spectrum, I wouldn't spend $650 just to have the latest and greatest, especially if my corals were doing well. However, I don't want to be pushed into buying a new light because my current light is only running a 42%. I want to spend money on living creatures to fill my tank, not buy equipment just to have the latest and greatest.

Ghost makes a good point. If the LEDs, regardless of brand, are really losing 25%/year, I will not buy another LED fixture. A Gen 3 Pro is over $700, I think. If I had to buy a new one in 3 years that's about $30/month for a light fixture.

But they are not losing 25% a year.

 

[BoxesOfTheSea]

But they are not losing 25% a year.

WHOA!! My mistake! Apologies. I misread 25 PAR as 25%.

Sorry about that. Mod-- delete my comment about that, if possible.

 

[mayjong]

thanks for the input all.
i agree, if the fixture is losing 25 par per year, i am fine with that. just wondering if anyone else can verify that. you would think with all the fixures out there, it would be easy to do
thanks again

 

[ejohnson]

Looking at the above chart is very encouraging. Lets face it, alot of us will replace the light before the PAR is very bad, just because of tech advances. I'm waiting for the led with web cam and doser built in...

 

[BoxesOfTheSea]

Part of this question has been answered for me. Two of my diodes are burned out after 27 months. I only ran the light about 9 hrs/day at an intensity never higher than 60%. I'm very disappointed to say the least. I think when I bought it new it was $649. I expected more life out of it.