Orphek Atlantik V4 PAR & Distribution

Dana Riddle · Dec 20, 2018

The graph shows PAR (PPFD) at a water depth of 17" with the Orphek light 2.25" above the water surface (it is resting on the top of the tank and its long axis is parallel to the front glass.) It is at full power on all 4 channels (about 200 watts.) Since parameters have changed (height above water) this is not meant to be a direct comparison with other data I've posted this week. However, these numbers are impressive. More later. I need to order a mount for this light in order to refine this info. Think I'll do that right now.

Flippers4pups · Dec 20, 2018

Very nice coverage and plenty of power. Impressive!

hart24601 · Dec 20, 2018

I was happy to find a light that many reefers will find visually pleasing with all channels equal instead of the standard of radion ab+ with 3 channels at 24% and the rest at 100

Mark Gray · Dec 20, 2018

Hi Dana are you going to hang it or are you ordering their mounting arms?

saltyfilmfolks · Dec 20, 2018

Thank you!!

Dana Riddle · Dec 21, 2018

Mark Gray said:
Hi Dana are you going to hang it or are you ordering their mounting arms?

I think I'll go with the mounting arms - a much cleaner look than anything I can rig up. I have the standard suspension cables but the lab has a suspended ceiling and I'd have to brace it. Just too much trouble.

Damien Buckley · Dec 21, 2018

That a great demo. Have to say I’m very happy with mine - struggling to keep up with dosing since I switched over.

Matt Carden · Dec 21, 2018

Looks like a pretty good light. If my basic electronic knowledge is correct, each led is only drawing less than 1.5 watts.

oreo54 · Dec 21, 2018

Matt Carden said:
Looks like a pretty good light. If my basic electronic knowledge is correct, each led is only drawing less than 1.5 watts.

Power consumption: 201~235 watt
78 diodes..
14 new types of custom made dual core 5 Watt LEDs

2.58 to 3.05W per diode

Roughly 1.5W per "core" but 3W per "diode".. Like w/ a COB a 100W COB doesn't break down by "cores" (usually about 1W each rating (10x10) for example)...

442mA per "core" most likely (cores in parallel, diodes in series)..or some such thing..

5W "diodes" (call em COB's if you like..

) run at 3W.. Pretty typical pattern..

Dana Riddle · Dec 21, 2018

PAR (PPFD) at 13" water depth. Luminaire 2.25" off the water, for a total distance of 15.25" from light to Apogee MQ-510 'improved' sensor. Full power on 4 channels. Note color gradients don't match the earlier post.

oreo54 · Dec 21, 2018

Default :Wide convex 120 degree

Custom: For Deep Aquarium 90degree , 60degree , 45degree ,15degree, 5 degree

Default 120 lenses?
Looks awful tight for that though..just a guess..

Mark Gray · Dec 21, 2018

Dana Riddle said:
I think I'll go with the mounting arms - a much cleaner look than anything I can rig up. I have the standard suspension cables but the lab has a suspended ceiling and I'd have to brace it. Just too much trouble.

About the arms, they are good and look good to but put some type of thread lubricant on all the screws I think they will seize up with a little salt creep on them

Wrasse-cal · Dec 21, 2018

As an Orphek v4 owner, this is really useful and interesting. I have my light 14 from the water surface. @Dana Riddle, in your first post I see reference to "other data" regarding this light. Is that data posted?

Dana Riddle · Dec 21, 2018

Mark Gray said:
About the arms, they are good and look good to but put some type of thread lubricant on all the screws I think they will seize up with a little salt creep on them

Thanks! The arm was shipped today.

Dana Riddle · Dec 21, 2018

Wrasse-cal said:
As an Orphek v4 owner, this is really useful and interesting. I have my light 14 from the water surface. @Dana Riddle, in your first post I see reference to "other data" regarding this light. Is that data posted?

No, I was referring to posts I made about Kessils and Noopysche lamps. I do have more info on the Orphek and will post soon.

Wrasse-cal · Dec 21, 2018

Dana Riddle said:
No, I was referring to posts I made about Kessils and Noopysche lamps. I do have more info on the Orphek and will post soon.

Wonderful. I'm very curious to hear you impressions. If you have the time and interest, the v4 comes programmed with several lighting schemes. Some of the more interestingly named schemes are "Increased Coral Growth," "Coral Color," "Maintaining Fast Growth," "Coral Fragging" and "Coral Color + Growth." I for one would be curious about your thoughts on these programs and if there is any truth to the descriptions.

Dana Riddle · Dec 22, 2018

Atlantik V4 PPFD (PAR) values at 8" depth. Height same as before. Goodness gracious. I'll try to get some data when surface agitation ('shimmer') is present.

Dana Riddle · Dec 22, 2018

Wrasse-cal said:
Wonderful. I'm very curious to hear you impressions. If you have the time and interest, the v4 comes programmed with several lighting schemes. Some of the more interestingly named schemes are "Increased Coral Growth," "Coral Color," "Maintaining Fast Growth," "Coral Fragging" and "Coral Color + Growth." I for one would be curious about your thoughts on these programs and if there is any truth to the descriptions.

I can do that. I'll use either a WatchDog datalogger or an Apogee quantum meter and look at the Daily Light Integral (DLI.) With Christmas here, and all the family activities and travel, it'll probably be after the first of the year before I can get to it.

Wrasse-cal · Dec 22, 2018

Dana Riddle said:
I can do that. I'll use either a WatchDog datalogger or an Apogee quantum meter and look at the Daily Light Integral (DLI.) With Christmas here, and all the family activities and travel, it'll probably be after the first of the year before I can get to it.

That'd be great! I'd really be curious to hear your thoughts on the "best" program/channel combo for Acropora. I'd rather defer to the expert with the knowledge and equipment than my amateur eye. Merry Christmas!