Looking for GHL reviews from users...

[Rice Reef]

Can one of the mods amend the title from "GHL" to GHL Mitras?
Thanks

[BlueTang<3]

I have 4 on order I think there are only 3 users here in canreef that have the light that I know of. If you check out sphelps build thread he has it.

[xenon]

rodneyri on RC is getting amazing results.

I am holding off on the Mitras until the Radion Pro is out. If I can get similar coloration from upgrading my Radions, I will be happy.

[sphelps]

I have three, what exactly is it you're looking for or want to know? I did a bit of a blurb in my build thread when I got them.

[Myka]

Steve, how do you feel the Mitras compares to MH as far as visual color appearance? Any disco? I think you've only had them for 3 weeks, right? So you can't really comment on growth and what coral color the lights produce. I'm checking out rodneyri's results...seems he's had the Mitras the longest.

[sphelps]

Yeah about three weeks now.

Color is really good, definitely comparable to metal halides and there is zero disco effect. I've seen the disco effect in Radions, the GHLs are substantially better.

I do have new growth starting in SPS colonies and frags I've recently acquired, unless you run them side by side with another light source it'll be hard to find direct comparison results as far as growth goes. The bottom line is these do definitely grow coral. I still run them pretty low as far as output goes as well, I'll be cranking them up shortly. I also still need to get my Ca reactor tuned better to match the tank, Alk is currently pretty high so conditions aren't optimal yet.

The one I really like is that everything in the tank is happy, SPS holding color, soft corals fully expanded, LPS corals fully expanded with good color. Plus the tank is 32" deep and I have some SPS pretty low, montipora is even currently on the sand bed and doing well. This has definitely not been the case for me with previous lighting, it's almost like I can put things anywhere and they do well. I think it comes down to a very even light distribution.

I did take a few snapshots of pretty much all the SPS when first introduced so I will be able to present growth shots down the road.

[Myka]

Hey that's great Steve! I'm thinking about jumping on the bandwagon, but so far I haven't really found a fixture that seems good enough to bother, you know? I'm liking the comments about the Mitras. The biggest complaint seems to be software (also the easiest fix). I'm having a hard time with the price though considering how quickly LED units are being upgraded and modified, and the newness of the Mitras units. I mean already the Mitras has been upgraded to wireless, that's a huge change, and I wouldn't be happy if I bought the first version with the wireless coming out so soon afterwards. When I buy lights, I want them to last at least 4 or 5 years before I upgrade. Oh the indecision...

[Rice Reef]

Originally Posted by sphelps

I have three, what exactly is it you're looking for or want to know? I did a bit of a blurb in my build thread when I got them.

Thank you for sharing. I really like your methodical approach in sharing your new build... With regards to the Mitras can you tell me if the spread is as good as they advertise and is the blending of the lights anywhere close to resembling the t5s as the pictures from what I have seen so far are hard to tell. I have had the chance to see some very nice tanks using t5s and i have not seen any LED lights (IMO) so far being able to mimic t5 lighting.

If they are the real deal would you hang two lights length wise parallel to the display or width wise like how you have them set up on your tank?

Thanks

Wayne

[sphelps]

Originally Posted by Rice Reef

Thank you for sharing. I really like your methodical approach in sharing your new build... With regards to the Mitras can you tell me if the spread is as good as they advertise and is the blending of the lights anywhere close to resembling the t5s as the pictures from what I have seen so far are hard to tell. I have had the chance to see some very nice tanks using t5s and i have not seen any LED lights (IMO) so far being able to mimic t5 lighting.

If they are the real deal would you hang two lights length wise parallel to the display or width wise like how you have them set up on your tank?

Thanks

Wayne

The spread is huge on these fixtures, you could cover my tank with two fixtures (64x32) but I feel three is better number given the depth (32) and the demand required for an SPS dominant tank. There's a picture of a 40" x 40" tank with a single fixture given complete coverage. I'm not going to reconfigure my fixtures for a demonstration, too much work would be required in regards to mounting given some limitations I have on space above.

I think I've mentioned color blending a few times now. In regards to comparing to T5s, not sure it can be done. They are completely different and offer more similarities to Halides than T5s. The lack of optics and larger spread design does reduce spotlight and shimmer effects compared to other LED fixtures so perhaps the Mitras is what you're looking for but maybe not. If T5s are really what you like then why not run T5s?

[Rice Reef]

Originally Posted by sphelps

The spread is huge on these fixtures, you could cover my tank with two fixtures (64x32) but I feel three is better number given the depth (32) and the demand required for an SPS dominant tank. There's a picture of a 40" x 40" tank with a single fixture given complete coverage. I'm not going to reconfigure my fixtures for a demonstration, too much work would be required in regards to mounting given some limitations I have on space above.

I think I've mentioned color blending a few times now. In regards to comparing to T5s, not sure it can be done. They are completely different and offer more similarities to Halides than T5s. The lack of optics and larger spread design does reduce spotlight and shimmer effects compared to other LED fixtures so perhaps the Mitras is what you're looking for but maybe not. If T5s are really what you like then why not run T5s?

Thank you for your input. I don't think you will need to reconfigure your lights. I will look for the 40x40 tank and that should help my decision on the light placement down the road.

I agree with you on the LED where they resemble more halides and lack the richness (colour) that t5s emit. I have considered running a tank with just t5s but after considering the costs LED is a better choice. Perhaps the Mitras would be a better. Again, thanks.