Light for full coverage 90 CM

[zanguli-ya-zamba]

Hi Alto
Thanks for you input mate.
Yes I think that when power goes on it just flash on to what ever intensity is set. I sent an email to Kessil they answered me some questions but not the question about the ramping up intensity when lights turn of after a power outage if I have the controller device ... I sent back immediately a mail after receiving their answer but not answer back.
Here is the mail. Maybe you could enlighten me about what she says I am not sure about every her answer.





I have read the review of George Farmer about the Radion light and says that even if there is a power outage (for example using a timer) the light will turn on gradually.
So this might be the answer I am looking for !!
I asked him yesterday night if we could have a chat he says he will contact me today. As he have used the two models I think he can answer my questions. I hope he has the controller on the Kessil to try to simulate a power outage.

So my choice will be between Kessil and Radion. Do you think that 2 Radion 15w will ok to evolve with my skills in terms of intensity ?

Regards


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[zanguli-ya-zamba]

I have a huge preference for the Kessil design color rendition and for the gooseneck system. But the gradually increase intensity at light on when there is a power outage of the Radion is important for me.
But I press the color rendition of Kessil also.
What a nightmare to choose !!!


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[alto]

I may have an opportunity to speak with the specialist light guy today - I'm going to the shop but it may be his day off - will see what he thinks about power outages

 

[micheljq]

What you really need is a good UPS : Uninterruptible power supply.

Michel.

 

[alto]

Well light guy was not in but other fellow mentioned that the controller likely has some back up battery so you might check with Kessil for details of this ... it's usually just enough to maintain program memory but depending on length of outage, not sure if controller will comeback on at beginning of program or at position of "interrupt" or how long controller will maintain it's time count ... or will it just flash back to 12:00 or 1:00 as many appliances do

He did think that the Radion will just flash back on - the "slow ON" is from a controller

I preferred the metal finish & small profile of the Kessil over Radion - you might ask Troi for details on the Radion as he's running it on Windswept Eternity

 

[zanguli-ya-zamba]

Hi Alto
Thank you.
I have the answer for when the power comes back.


So now I don't really know what to do and what to choose.
Do you think that only two A160 will be enough for my tank ?

Cheers


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[alto]

Two A 160 or Radion XR15F (not sure if the Pro is suitable for freshwater, it's a nice upgrade but also got a hefty price increase - hope they've improved the "spectrum alters with intensity" issue) or TMC Grobeam 1500 Ultima should all provide decent light - difficult to choose though without seeing the systems in real life & having a chance to test out the controllers

I didn't like all the plastic that both TMC & EcoTech utilize in the surround build, Kessil definitely offers the least invasive profile (which is why the clunky goosenecks are such a disappointment & so at odds with the lamp styling) For me, Kessil worked out significantly cheaper so that made for a much easier decision

TMC offers one of the best warranties IF you can collect on it & the shipping doesn't exceed reasonable fees
Most companies require original packing & receipts for warranty/guarantee (this may be facilitated by local shops)

The response from Kessil (above) assumes that the controller has sufficient battery backup time to outlast the power outage - ask them for the actual time (minutes/hours) on this.

I did look into a "really good UPS" some years ago - cost was thousands $$$$ to maintain lights/filter/heaters (likely you don't need the last 😉)

 

[alto]

Fluval has what they term "soft start" LED's - need to press a button to engage this function on the unit I saw - when LED turns on, it does so gradually rather than a "flash" ... BUT I've no idea how effective this is, if room is in complete darkness - likely better then the "flash" but may still be enough to startle fish when there is zero ambient lighting

 

[alto]

Was looking at one of George Farmer's Featured Journals - TMC Signature (I think) - & he talks about the 1500 Ultima tile, the controller has battery backup power good for a few days (sorry don't recall the actual #, should've bookmarked the page 😳 ) in case of a power outage.

 

[zanguli-ya-zamba]

TMC tiles are good but for that price I don't really like the ugly plastic construction of these light. Even if Radion is plastic at least it's nicer than the TMC. But spectrum of the TMC is better than the Radion.
I have seen that Tom Barr despite what he says about Rafion spectrum just buy a Radion. I have asked him about the blue spectrum he says that he will tune it. But that wasn't my problem. I asked him about the way the light turns on but no reply. I will ask again.
But I quite like the idea of the TMC. Let me think about it.

At first I was interested in the big version of the Radion, but it will not fully cover the tank. It covers 80cm on 60 cm only ....


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[alto]

I have asked him about the blue spectrum he says that he will tune it.

Yes you can tune the spectrum BUT (unlike Kessil & a few others) the spectrum will shift with light intensity - disappointing of Ecotech to have chosen this hardware (limitation - especially given the system's pricing) & they are quite reluctant to disclose this information (& refused to discuss details).

Definitely contact Ecotech before buying, perhaps their response team has improved 😉 😀
- they do offer some great design features such as being able to swap out the lens & even the light "pucks" (though you might confirm that this is true of the Freshwater XR15)

 

[pepedopolous]

Unfortunately, I'm quite sure that no light is designed with a 'soft start' after power cuts because it is typically such a rare event. The best ones will simply resume the light spectrum and intensity according to the time on the program, which is saved thanks to an internal battery.

So I think your best option is a UPS for whichever light you choose...

You could also consider freshwater LEDs from GHL, Pacific Sun, and Ophek...

P

 

[Staticrzr]

I see nobody mentioned dsuny, they have very good prices. One 90cm unit costs 250 USD including shipping and it's enough for getting full coverage of your tank. They use 40 pcs of 3w Bridgelux LED of different nm and Kelvin. You get wi-fi control and a nice android app. I think it's worth at least a good look before deciding to buy something alse. Check their ebay.