Aqua One PlantGlo LED unit

Kimberly4403

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This is a relatively new product in my LFS and i cant find many reviews online so thought id ask here if anyone has any experience with this unit over a planted tank...

Some specs ive found so far:
Colour- white, blue, green and red
4x LED strips
T5 Equivalent of 3x54 watts (assuming thats putting 162watts total over the tank?)

Trying to find kelvin specs...

I was thinking of putting this unit over my 75g tank.. Its approx. 52cm from light unit to substrate at the back and approx 49/50cm from light to lowest substrate point at front


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Kimberly4403

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PAR rating calculations

Can anyone calculate my par reading for a new light unit im looking at.. Or tell me how to do it?

Aqua one PlantGlo 120cm
T5 Equivalent 3x54 watts LED strips
52cm from bulb to highest substrate at back
49/50cm from bulb to lowest substrate at front
Not sure onn Kelvin rating
 
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Kimberly4403

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Not sure about reflectors the unit im looking at getting is the Aqua One PlantGlo 120cm

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alink

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Okay this is the formula I use. Its not exact, but its ballpark. Only way to get exact is to get a PAR meter for a couple hundred bucks.

OUTPUT GOALS:
For low light you want 15-80 PAR at the substrate
For medium light you want 50-150 PAR at the substrate
For high light you want 100-200+ PAR at the substrate
12 inch tall tank:
low = 80 PAR at the surface
medium = 166 PAR at the surface
high = 250 PAR at the surface
24 inch tall tank:
low = 166 PAR at the surface
medium = 333 PAR at the surface
high = 500 PAR at the surface

LIGHTS:
T8 lights = 1.0 PAR factor
T5/HO lights = 1.4 PAR factor
Metal Hallides = 1.7 PAR factor

REFLECTORS:
No reflectors will result in 75% loss
Parabolic reflectors could give 200-350% more output if they are very, very good.
A light fixture designed to work for plants will be around 300% increase.

Average reduction on light entering the water is about 40%.

So to make sense of all these numbers this is what you do.

combined Watt rating of bulbs(W) * PAR factor(PF) = PAR rating at the source(PRS)

(PRS* reflector value (RV)) * light loss at surface (40%) = PAR at the top of the tank (PAT)

PAT / 2 = PAR at 12"

PAR at 12" * (1/4) = PAR at the substrate.

OR do it in one formula below..

(((((W * PF) * RV)*40%)/2)*.25) = PAR at substrate.

SO for your lighting I would do..

3 * 54 = 162 Watts
1.4 PAR factor
300% for reflectors
40% reduction
(((((162 * 1.4) * 3)*.4)/2)*,25) = 34.02 PAR at substrate which is good for low light plants.
 
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Kimberly4403

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Ok so would amazon sword and val work for this par rating? I couldnt work out if the unit had reflectors or not did you have a look at unit?

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I figured since it is advertised as a plant unit, it would have good reflectors. Its the metal mirror like inside that reflect the light of the circular shape bulb that would normally go up or to the sides, and refracts it into the tank.

Amazon Sword is a moderate light plant, so I think it would be a little low for that, but again my calculation isnt 100% accurate, so it could potentially be enough. theres about a +/-10-15% error margin in the calculation.

Vals would be okay, they are low light plants.
 
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Kimberly4403

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Well i dont know about reflectors but this unit is an LED unit not a fluro tube unit

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alink

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Oh, I guess I missed that part in your first post. I saw the T5 thing and just thought thats what it was. I dont know how to calculate the PAR for LED. I think you need a meter for that...
 
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Kimberly4403

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Oh so really i have no idea if this will work over my tank or not.. Well i guess i could ecperiment with it

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Kimberly4403

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Are LED units normally stronger than fluros?

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Yes! I'm sure it will work for at very least low light plants. I am planing to get this light in the very near future for my tank. Lots of members have recommended it to me.

I assume you are outside the US since you were using cm measurements. I'm sure you can find that light or something similar to it in your country.

LED's use less energy than a fluorescent light, emit more light on a broader spectrum (good for plants). They also have an extremely long life time. Some estimates say up to 50,000 hours before they started dimming, and you have another 50,000 hours before they would dim to the point you would have to replace them. 10 hours a day, that is like 27 years with no replacement parts. Fluorescent bulbs have to be changed every 6 months or so. LED is by far the best choice for planted tanks.
 
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Kimberly4403

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Im not getting the finnex as i want something i can get locally live in Australia so thought i might try the AquaOne PlantGlo LED unit as thats what i can get at my LFS without ordering from overseas... I think its very similar

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