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ORPHEK PR72 LED FRESHWATER PLANTED AQUARIUM LED PENDANT

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Bartash

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17 Mar 2011
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Broadstairs, Kent
Ive been contacted by this company http://orphek.com/led/orphek-products/pr72-planted-2/ to be the UK contact for this Planted Tank LED light

http://orphek.com/led/wp-content/upload ... endant.pdf

http://marine-engineers.org/2012/04/18/ ... om-orphek/

What are your guys opinions about the light, they are sending me one through to check out but i wanted to see if you think the lights look any good you can see the spectrum in the last link

Carl

Not sure on pricing yet im waiting for the details to be sent through
 
looks like a baby version of the reefers favourite par38's they're kick ass bulbs for reefing may be abit strong for trops/planted but i guess they'd be fine.

as is usual for lighting though anything will do as long as you have enough co2 + ferts to compensate for the amount of incoming energy from the light.

Would be interesting to see some at substrate par readings on them both in direct and in corners on a variety of common tank sizes, also pricing would be important for it to compete with the cheap chinese equivs you can buy on ebay for a couple of quid.

spectrum/colour rendition is irrelevent for plant growth as usual and becomes more about what you as the owner think of the lighting does it bring out the colours of the plants/fish how you like them etc you can pay a grand for a light and if its too white for your tastes then its worthless. or you can pay 2 quid for a bulb and have it perfect. personal preference is king.
 
Hi Carl, I just stumbled here because of the Orphek PR72 and I'd love to know what you think of it. I think it's the most promising off-the-shelf LED I've seen and closest to what I would build myself (but better looking and less expensive). I'm following your Google+ in case you post another video. Cheers! (As an American, I'm allowed to say that right?)

John
 
These lights far exceed my expectations, i did a quick test with my light meter directly under it and got 4000 PAR, it has lenses that can easily be removed if you wish to weaken it a bit. Im going to do a full video review of the light and have to admit this is the best LED light i have seen for the price.

I can have these shipped directly to you for roughly £210 *Edited price, i put the wrong price before as i forgot to add taxes*

Orphek are on a winner with this LED

Carl

If anyone is interested you can email me plantedtankuk@orphek.com
 
Do you have any pics if yours setup over a tank. What have you hung it from etc.

Thanks.
 
4000par?!

Can we get some normalized par levels par over a 30cm tank for example?
 
Not sure that the red and blue lights promote plant growth tbh...

Are those par reading out of water or in water?
 
Ian I believe the par readings were out of the water, which skews the results somewhat.

If the blue wavelength has been found to be optimal for coral growth, why could a different one not be optimal for plant growth ? Its an interesting topic. I know we tend to choose our lights for aesthetic reasons (for example I prefer a bit more red, so lower down the k scale, whereas some prefer a crisper colour), but has any research been done into what the plants prefer or react best to ?
 
Bartash said:
http://marine-engineers.org/2012/04/18/new-red-led-unveiled-from-orphek/

Take a look at this site its about the Red LEDs

Carl


It says on that page "As Orphek told me, the diode will target chlorophyll A and B with its full spectrum output." Is there any research and results to back it up or are they just claiming that ?
 
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