Odyssea 36" EVO LED 3W Fixture PAR data - The Planted Tank Forum
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post #1 of 37 (permalink) Old 03-18-2013, 03:13 AM Thread Starter
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Odyssea 36" EVO LED 3W Fixture PAR data

So got in a par meter that hoppy had converted over from a lux meter. (Big thanks to hoppy there!)

According the information the numbers will be roughly 15% high however, the numbers are still suprising!!

ALL NUMBERS ARE OPEN AIR

On height above the meter I went from 0-36" and then out from the center 6" and 12" though the numbers may not be 100% accurate they are close enough to give this fixture some definite warrant!!

From Center
Height 0" / 6" / 12"
0" 450 / na / na
12" 220 / 140 / 6
18" 140 / 108 / 12
24" 108 / 100 / 28
30" 83 / 90 / 45
36" 70 / 75 / 49

The underlined ones I found odd, because the 6" out from center is higher then directly underneath, I think this is due to the fact that when I tested out from center I had the light against a wall, BUT this is probably still accurate due to light that gets reflected back from your glass. At any rate, this fixture is surprisingly strong!

You can also tell from the measurement of par from 24" and under the light has a very narrow beam pattern, but in a tank 18" wide or less you would still get significant coverage.


Once I get my new tank up and going, AKA finally getting the glass and assembling it I will do more readings and then some with water.


Here is a link to the unboxing of the fixture

Beamswork 36" with 3w led

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Last edited by NWA-Planted; 03-18-2013 at 03:34 AM. Reason: Adding link
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post #2 of 37 (permalink) Old 03-18-2013, 04:31 AM
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very nice info
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post #3 of 37 (permalink) Old 03-18-2013, 05:09 AM Thread Starter
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Re: Odyssea 36" EVO LED 3W Fixture PAR data

Hopefully it helps, i was very surprised in the output from this fixture!! Especially at the cost of 150 bucks

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post #4 of 37 (permalink) Old 03-18-2013, 05:36 AM
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Yea i know am pretty excited i was looking for a new light. Seems pretty good. I never had problems with odyessa lights when i had it for a sw tank
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post #5 of 37 (permalink) Old 03-18-2013, 04:24 PM Thread Starter
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Re: Odyssea 36" EVO LED 3W Fixture PAR data

Yea i think you would be safe to use one of these, also the "moonlight" feature kicks on i think around 7 leds, drops the par to almost nothing for good accent lighting.

I wouldn't recommend anything less than 24" above substrate, otherwise your going to need some serious co2

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post #6 of 37 (permalink) Old 05-01-2013, 02:18 AM
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Odyssea 36" EVO LED 3W Fixture PAR data

Any update on the light. The price margin and 3w a light is very tempting.
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post #7 of 37 (permalink) Old 07-02-2013, 03:47 PM Thread Starter
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Sorry for the delayed response, but to answer your question the fixture is working very well for me!

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post #8 of 37 (permalink) Old 11-02-2015, 10:55 PM
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bumping 2 year old thread...

I have the dual EVO 30" fixture over a 56G tank (30" x 18" x 24"H), I would be very happy to have 90PAR at 24"H.
Quote:
24" 108 / 100 / 28
PAR readings for beamswork/greenelement/other cheap chinese arrays
This thread however measures 130PAR at 17" with water, with 2 x dual EVO 48". That would translate to 32.5PAR equivalent
130/2 * (17/24)^2 = 65 * 0.501 = 32.5

Which value is more likely for the dual EVO 30"?

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post #9 of 37 (permalink) Old 11-02-2015, 11:18 PM
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Quote:
Originally Posted by max88 View Post
bumping 2 year old thread...

I have the dual evo 30" fixture over a 56g tank (30" x 18" x 24"h), i would be very happy to have 90par at 24"h.


PAR readings for beamswork/greenelement/other cheap chinese arrays
this thread however measures 130par at 17" with water, with 2 x dual evo 48". That would translate to 32.5par equivalent
130/2 * (17/24)^2 = 65 * 0.501 = 32.5

which value is more likely for the dual evo 30"?
46................Inverse sq. law doesn't hold well. It is more linear...

you can play w/ math a bit..
LED Lighting Compendium

Quote:
24" fixture: 179 PAR @ 6", 87 PAR @ 12", 55 PAR @ 18"
if inv. sq law held PAR at 12" would be 44.75

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Last edited by jeffkrol; 11-02-2015 at 11:34 PM. Reason: edit
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post #10 of 37 (permalink) Old 11-02-2015, 11:35 PM
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The PAR should be half, 130/2=65. Light is additive and the inverse sq. law was already calculated the first measurement, no need to do it again.
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post #11 of 37 (permalink) Old 11-03-2015, 12:22 AM
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I am happy to have PAR between 46 and 65, for low light plants. Thanks for the replies.
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post #12 of 37 (permalink) Old 11-15-2015, 04:12 AM
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Borrowed PAR meter from a friend...
Roughly 23" from LED to substrate
max=130 directly under optics
avg=100 around optics
min=50 without optics
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post #13 of 37 (permalink) Old 11-15-2015, 05:01 AM
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Quote:
Originally Posted by max88 View Post
Borrowed PAR meter from a friend...
Roughly 23" from LED to substrate
max=130 directly under optics
avg=100 around optics
min=50 without optics
Without optics... you mean you removed the lenses and splash guard?
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post #14 of 37 (permalink) Old 11-15-2015, 10:37 PM
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180par is observed when directly under LED with 90degree optics/lenses on. That's directly in the center of the LED coverage.
50par when optics are removed.
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post #15 of 37 (permalink) Old 11-15-2015, 11:58 PM
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Quote:
Originally Posted by max88 View Post
180par is observed when directly under LED with 90degree optics/lenses on. That's directly in the center of the LED coverage.
50par when optics are removed.
With the lenses removed, most of the light spills inside and is completely wasted. The splash guard must be removed to get an accurate reading.
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