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Old 01/31/2017, 08:03 AM   #1
d2mini
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**The GHL Mitras LX7 LED**

I started running the new GHL Mitras LX7 over my nano!
We don't see too many Mitras users around here so I thought I'd post my initial impressions.
Please feel free to ask questions or chime in with your own experience!
I've only had mine a few weeks so I'm sure I could benefit from others as well.
Maybe we can even get GHL to follow and help answer questions.



The New GHL Mitras LX7 LED


Anyone who's been around for a bit and has gotten to know me over the years, knows that I'm a big fan of traditional lighting. I tried LED lighting early on and I was not impressed. The various options they brought to the table like slow ramping up and down, spectrum that could be changed on a whim, low heat, low energy consumption, no bulb changes... these were all very enticing. But when it came to growth and color, I became very disappointed. So after two years and two generations of LED light I decided I had enough and went back to the tried and true method of lighting my tank… MH supplemented with T5.

During the next couple of years, while watching my coral grow like weeds, I learned a few things from my experiences. I knew my struggles didn't have to do with the LEDs themselves, but more how they were implemented. So when I was given the chance to run LED again, I decided to accept the challenge and give it another shot. What I knew I needed this time was a lot more LEDs for better coverage and I needed to hang them much higher to combat the problems with shadowing. Technology has also improved to help combat these same issues. For the past 6 months or so I've been running the latest generation Radion G4 Pro leds over my 120g mixed reef, and have been having success so far.



This month GHL finally started shipping their latest generation of LED light, the GHL Mitras LX7. GHL has been in the LED game for several years already, but what really put them on the map was their aquarium controller, the Profilux. I've owned one since 2012 and it is without a doubt the best controller I've ever used. I have yet to see a full aquarium controller that is better designed, has higher quality hardware, has stronger software/firmware, and is near as stable. Everything is designed from the ground up in Germany. If all those qualities could be applied to an LED light, along with all the knowledge and technological advancements gained from the past several years, with a dash of the latest innovations straight from the GHL labs, it seems to me that would be a winning combination.

I was lucky enough to get in on the first batch of USA deliveries. Could this new (updated) light from GHL live up to my reef lighting needs and expectations? Does it have the same qualities I've come to expect from GHL? The plan was to replace the Reefbrite Metal Halide fixture I had hanging over my 25g Nano mixed reef for the past year. It's still a bit early to tell how my little reef will react long term, but I'd like to share some first impressions.

Build Quality
Upon arrival and taking the Mitras out of the box, it immediately felt like a GHL product. It feels very solid/sturdy. The screen is on the short end along with the capacitive touch controls. If you are familiar with the Profilux controller you will feel right at home. Same screen with the same kind of controls and menu system. When you are paying top tier prices, it's nice to receive a product that feels top tier.

Appearance and Design
You can get the basic gist by looking at their photos online, but in person it's a pretty sleek bit of kit. I opted for black, and there is a white option as well. It's obvious time was spent on the industrial design of this product. Words like modern and elegant immediately come to mind. Some surfaces are smooth, some have a slight ribbing, all edges are smooth with various radiuses… this is not just a generic box with some electronics thrown inside. The bottom panel is where the magic happens… Six clusters of LEDs, recessed slightly within reflectors (yes... REFLECTORS) and finished off with a sheet of acrylic, making the entire bottom panel one smooth surface. And finally, GHL couldn't just use a standard black sheathing over the single electrical cord. They used a transparent casing, revealing the silver wire inside. It's clean, and it doesn't stand out as much as a black cord would. The top of the Mitras is vented and contains three small fans which are completely silent, to these ears anyway.



Programming
You can do this with the screen and capacitive touch buttons on the Mitras itself but it would be a chore. The best course of action is to use the PC based software, GHL Control Center. The initial connection to your Mitras has to be with the provided USB cable. GHL has a youtube channel and they show you step by step how to connect and get hooked up to your WiFi. It's pretty simple and the video makes it a cinch, and from now on you can connect to the Mitras wirelessly. Once connected you can open up the software, go to the Illumination tab, and create a new "project". Honestly, I'm still learning what the software can do. It's VERY capable with lots of nice options. But creating your initial project is very easy. Start by creating your first time point for the day. You'll see the familiar sliders for each color channel. Choose the percent power for each color channel, click ok and create the next point on the graph. Pretty standard stuff.



Some other nice little programming features...
You can choose to see your programming changes on the fly… or not.
You can save spectrum presets, very helpful while programming your daily schedule.
You can set up several "maintenance" programs that are easily accessed through the pc software, the cloud, or directly on the light with just a few clicks. For instance, I set up a 13,000k spectrum for taking photos of my coral.
Feel like you need a little more punch out of a color channel? You can "overdrive" it up to 130%.
Detailed "Simulation" modes for clouds, rainy days, and moon phases, all tweakable to your liking.
Thunderstorms can also be simulated, with a ton of options, even SOUND! But the sound comes out of your PC. Maybe someone can tell me how to get the lights to play the sound instead.
You can even simulate Seasonal Lighting... day length and intensity changes throughout the year.

I have to say, the details and options available are really impressive. The more I use it, the more I like it, and in many ways prefer it over other lights that I've used. And it can all be done without being connected to a cloud service, but the cloud option is available which is nice for making changes remotely.

Light Quality
You get 9 separate, dimmable color channels to work with. Hyper Violet, Ultra Violet, Royal Blue, Blue, Blue White, Cool White, Warm White, True Green, and Hyper Red. Wow. There are a total of 72 leds spread across 6 clusters. Each cluster is replaceable/upgradeable and the leds are clustered very tight together and within a metal coated reflector that attempts to mimic parabolic metal halide reflectors. This blends the separate color channels to avoid that "disco" effect commonly seen in tanks that are lit by led fixtures. I can say that I see zero disco effect in my tank. The light spread and lack of shadowing is also quite impressive. I removed the 24" double ended metal halide fixture and replaced it with this Mitras and I can not see any discernible difference.



Using an Apogee MQ500 par meter, I was able to take some measurements as shown in the illustration below. All pumps were off, the light is 14" above the water, and at this spectrum of 14,500 Kelvin, the fixture was running at 100% power. The first set of numbers are right below the surface of the water. The next set are about 4-5" down, and the last set is at the bottom of the tank. These were all measured as close to the center of the tank as I could get with the rock in there. The very bottom set of numbers show the par readings right near the front glass at the very bottom.



Here is another PAR test using the same Apogee meter but this time I ramped the LX7 up to max power, all channels, all settings.



My conclusion is that the Mitras does have very good light spread, and overall power is very similar to the new Radion G4 Pros. My amatuer/unscientific approach to using the par meter on both tanks was close enough that I couldn't accurately pick a winner as far as overall intensity. Someone with better equipment and technique would be better suited to make that kind of determination. What I can say is that most hobbyists would not be wanting for more power with either light.

I also want to note that when hanging above the aquarium, I am impressed by the lack of glare and light spill. Again, the Mitras is 14" off the surface of the water. When in a sitting position, I can see all 6 pucks, yet I have no problem looking right at them from this angle. With the light spread this unit has, this is impressive to say the least.

Colors
I think I can safely say that the majority of reefers want their coral to have good color. Lighting is only one part of that equation, but let's assume you've got everything else dialed in. You're going to want your light to bring out those colors, and I do not think you will be disappointed. With 9 channels, including two whites and several blues/purples, you are sure to find a spectrum (or two or three) that suit your needs. I prefer a whiter light with a bit of crisp blue, similar to Radium 14k MH bulbs. Taking into consideration that this little nano has had its share of ups and downs this past year, my coral are looking pretty colorful and healthy after a few weeks under the Mitras.





Mounting Options
They offer two distinct mounting options, neither of which is included with the fixture, so keep this in mind when purchasing. The less expensive option is to purchase the wire hanging kit. There are two mounting holes on top of the fixture. You can then run the wires to your ceiling or some kind of DIY support above the tank. The second and more expensive option is their Mitras Flex Mount System. Using a combination of metal and acrylic it offers a pretty slick way of mounting your Mitras to your stand, and offers a really good amount of both height and fore/aft adjustability. Definitely one of the nicest mounting options I've seen to date.

Overall First Impressions
This is not an inexpensive light. At the current price of $750 per unit, it's sitting right at the top end of similarly sized, fully programmable LED fixtures, but it does come in $50 under the cost of the Ecotech Radion G4 Pro. And from what I can tell, the coverage is at least as good, if not better. I have mine over my nano tank which is sized 24" long by 16 wide", which is a bit overkill. The fixture itself measures 12.75" x 7.75". There is MORE than enough light/coverage for this size tank. I would have no problem putting this over a 30" long tank... maybe even a little bit larger depending on how high you can mount it and the kind of coral you'd like to keep. No disco effect, outstanding light spread, 9 color channels, very robust programming, and a build quality you would be hard pressed to find elsewhere… This one is a keeper. I plan to post updates and results over time so check back periodically, but if you are in the market for an off-the-shelf, fully programmable LED light for your reef aquarium, the new GHL Mitras LX7 is most definitely worthy of your consideration.

Here's a few more pics of my little nano reef under the GHL Mitras LX7.
More can be seen at the end of my blog post here...

And big thanks to Vinny and Marco at GHLUSA for always being there to answer my questions.
http://www.everydayreef.com/blog/201...-mitras-7x-led








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Last edited by Misled; 02/02/2017 at 10:56 PM.
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Old 01/31/2017, 08:25 AM   #2
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Dennis,

Awesome write up! Ive had mine up and running for a little over a week. I used to run 6200s and love GHL products.

Could you get more in depth about your light project? Maybe share? !

Cheers!


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Old 01/31/2017, 08:49 AM   #3
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Great write up! I enjoyed reading it. They seem like awesome lights. If I ever get tired of DIY light fixtures I would put these at the top of the list.


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Old 01/31/2017, 09:06 AM   #4
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Nice write up. If I was not already in possession of 4 AI hydra52's I think I would have given these a shot on my 120. I like the spread puck layout much better than the single line on the hydras and radions. Even tho they cost a bit more I probably could have used 3 or even 2 instead of 4 hydra52's.


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Old 01/31/2017, 09:46 AM   #5
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Getting one of these for my Elos 70 and can't wait. My only complaint is that I will have install windows on my Mac or spend the money and buy a cheap acer or similar just for the light.


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Old 01/31/2017, 10:37 AM   #6
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Very nice write up! It's about time there's a LX7 thread here on RC! I just installed 6 of the LX7's over my main display and the colors that I am seeing in my corals are spectacular. I had an early LX7 demo unit over my frag tank for that last few months which I was lucky enough to get my hands on after MACNA and that sold me on them.

It's great that we now have an LX7 thread here on RC. This could be a great thread for sharing projects and settings. I am still finalizing my settings as I am in the acclimation process still but I will be sure to share my settings as well. One thing that is really nice about the GHL software is that you can pick your kelvin range and use that to create your ramp points so the color matches or have a higher kelvin for the dusk/dawn effect and a lower kelvin for peak lighting periods with a nice natural ramping transition between. What I also found cool was the fact that they connect to the network via wifi so you don't need the included USB cable to make changes to them. I also liked the fact that you can control and program them via GHL Control Center software or the MyGHL cloud interface.

Here are a few shots of mine. As I said, I am still acclimating my tank to the new lights on my rack. I am still trying to determine if 6 of them will be enough which it appears as though will work if I have the lights up high enough and the intensity up enough. I am still acclimating to the new lights so I have 8 of my 10 original Kessils up there at the moment.









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Last edited by slief; 01/31/2017 at 11:19 AM.
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Old 01/31/2017, 10:42 AM   #7
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Originally Posted by slief View Post
It's great that we now have an LX7 thread here on RC. This could be a great thread for sharing projects and settings. I am still finalizing my settings as I am in the acclimation process still but I will be sure to share my settings as well. One thing that is really nice about the GHL software is that you can pick your kelvin range and use that to create your ramp points so the color matches or have a higher kelvin for the dusk/dawn effect and a lower kelvin for peak lighting periods with a nice natural ramping transition between. What I also found cool was the fact that they connect to the network via wifi so you don't need the included USB cable to make changes to them. I also liked the fact that you can control and program them via GHL Control Center software or the MyGHL cloud interface.
I agree, all nice features!
Thanks!

So can any of you other Mitras users tell me how to share a project?
I've been tweaking mine a bit here and there but can share what I'm running currently.


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Old 01/31/2017, 11:02 AM   #8
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What a great write up Dennis! I'm getting to the point where I need a little better coverage with shadowing and I think a pair of these would work nicely. The control software looks pretty robust too which is very pleasing to see.


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Old 01/31/2017, 11:15 AM   #9
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I agree, all nice features!
Thanks!

So can any of you other Mitras users tell me how to share a project?
I've been tweaking mine a bit here and there but can share what I'm running currently.
Best way is to upload the project to a site like Dropbox. Make the folder public and share the dropbox link.


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Old 01/31/2017, 11:23 AM   #10
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Ok, thanks Scott!

Here's mine, current as of this morning.

https://dl.dropboxusercontent.com/u/...%201-17-17.lpc


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Old 01/31/2017, 11:33 AM   #11
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I'm a Mitras 6200 owner and would love to purchase a LX7 but am a bit apprehensive.

My initial experience with the 6200 was great, both coloration and growth of hard to keep Aussi SPS was on point. Then about a year into it things didn't seem right, I assumed water quality slipped and was chasing numbers which didn't even matter because it turned out the Violet LEDs were no longer firing. The light had been strange, weird flickering, seemed intensity of light would fluctuate for no reason, just didn't seem right.

Ghl kindly sent me replacement pucks but they violet still didn't fire, initially I was told the light had a 1 year warrante and I was out of luck but later came to find out it was a 2 year. Found that out a month before the two year mark, contacted GHL and they agreed to swap out light but I had to send mine back. Through no fault of GHL, I slacked over that last month and never got the light back to them to receive a new one.

Now I have a mitras with no violet and now no fans... The light still grows some SPS corals, but it's tough to color up many of them.

This is not a knock on GHL light, as I said I loved the light, I think the multiple pucks and the colors they use are ideal for coral growth. I'm just apprehensive about spending $800 and having similar issues down the road, I know I'm not the only one who had Violet LED failure, not sure about the fans.

Was never really a fan of the lighting composer and the lack of a cloud based wifi composer, has that changed?


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Old 01/31/2017, 01:55 PM   #12
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Awesome write up Dennis. Good info here for everyone.

How long did ya'll have to wait for your shipment to arrive? I ordered last Friday and haven't gotten any shipping notification yet.


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Old 01/31/2017, 02:27 PM   #13
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Awesome write up Dennis. Good info here for everyone.

How long did ya'll have to wait for your shipment to arrive? I ordered last Friday and haven't gotten any shipping notification yet.
Thanks!

They sold out the first batch! I think you just missed.
New batch should be arriving any day, last I heard.
Check in with Marco or Vinny.


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Old 01/31/2017, 02:31 PM   #14
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Was never really a fan of the lighting composer and the lack of a cloud based wifi composer, has that changed?
I'm curious... What exactly didn't you like about it?
I wasn't sure about it at first, mostly because I just wasn't used to it. Once I started wrapping my head around it, and getting a couple tips from GHL, I started to come around and now I really like it and prefer it over others I have used. It's got so many nice options.
I like that I can program it without connecting to their servers.
No chance of having connectivity issues and not being able to make changes.
Worse comes to worse I can connect through USB.


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Old 01/31/2017, 02:31 PM   #15
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Thanks!

They sold out the first batch! I think you just missed.
New batch should be arriving any day, last I heard.
Check in with Marco or Vinny.
Shucks, figures.

Any contact emails for them?


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Old 01/31/2017, 02:32 PM   #16
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Check in on their fb page... you'll see posts from both of them.
https://www.facebook.com/groups/GHLOwners/
Or check their sponsor forum here on RC.


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Old 01/31/2017, 03:53 PM   #17
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Great Write Up!

I am currently in the process of switching out my lighting as well. I will be leaving an ATI Sunpower and ATI Hybrid for GHL Mitra LX7s. I have been waiting a long time for LED technology to catch up to MH/T5 and I think the Mitra LX7s have done it.

I really like the ability to set a quick select program for shooting photos as well as the benefits of not having to replace T5 bulbs. I don't replace as many bulbs as some but every year I have to fork out $200 just for bulbs.

Overall though, I think the "NO DISCO" effect and GHLs mixture of LEDs used in their clusters is what did it for me. IMO this light should have a much more even spread compared to the Radion G4 as well as reduced shadowing compared to other LED lights.


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Old 01/31/2017, 04:29 PM   #18
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I didn't like that I had to use a Windows OS, all my computers are Mac so I had to buy a laptop to program. I also didn't like that I had to break out the lap top and hook up light to it every time I wanted to adjust lighting program.
I'm not too sure why they even have the controls on the light itself, those were pretty useless, I couldn't even imagine programming the light from that little screen.

I feel like it was a little over complicated.

Most disappointed about the violet failure though.

I will be trying another LED fixture soon, would love to stick with GHL but the G4 radion is also tempting.


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Old 01/31/2017, 04:31 PM   #19
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Awesome write up Dennis. Good info here for everyone.

How long did ya'll have to wait for your shipment to arrive? I ordered last Friday and haven't gotten any shipping notification yet.
Your lights are my next order to process. You should have shipping notification tomorrow morning. Sorry for the delay!


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Old 01/31/2017, 04:35 PM   #20
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Your lights are my next order to process. You should have shipping notification tomorrow morning. Sorry for the delay!
Ahh perfect. It's usually 3 days to Jersey? So am I looking at Monday for arrival?


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Old 01/31/2017, 04:38 PM   #21
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I didn't like that I had to use a Windows OS, all my computers are Mac so I had to buy a laptop to program. I also didn't like that I had to break out the lap top and hook up light to it every time I wanted to adjust lighting program.
I'm not too sure why they even have the controls on the light itself, those were pretty useless, I couldn't even imagine programming the light from that little screen.

I feel like it was a little over complicated.

Most disappointed about the violet failure though.

I will be trying another LED fixture soon, would love to stick with GHL but the G4 radion is also tempting.

The Radions will require a reeflink for wifi setup as well. Can't wait for the Mitras t oget on my tank.


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Old 01/31/2017, 06:28 PM   #22
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Is it worth paid for a mitas LX7 having the 6200HV?? what do you think about it?


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Old 01/31/2017, 07:14 PM   #23
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i think it would be worth while to spend the extra cash and get the latest fixture. its nice that the new LX 7 has Violet and Ultra Violet, the 6200 only has Violet.

How are the moon light setting on the LX7?

On the 6200 i loved that the light followed a natural moon cycle, going from new moon progressing for 2 weeks to full moon then waning for 2 weeks back to new moon. The only thing i didn't like was the moonlight was too bright, i could never figure out how to adjust the intensity of the moonlight, not sure there was a way.


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Old 01/31/2017, 08:25 PM   #24
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Originally Posted by david76 View Post
Is it worth paid for a mitas LX7 having the 6200HV?? what do you think about it?
I have both versions here and I greatly prefer the color of the corals under the LX7. On the LX7, there is one less white channel that really ins't needed and that channel is replaced with the 385nm UV channel which can help colors in corals fluoresce a bit more and is a spectrum that is absent in the LX6200. The LX7 also has the benefit of a built in WiFi controller making it easy to connect to MyGHL which allows you to control the light from anywhere as well as from your smart phone. While you can't currently modify a project in MyGHL, you can change the color and intensity of the light from MyGHL. There are other benefits of the LX7 too but for me, those are the key ones. If I had to choose between the two, it's a no brainer. The LX7 improves upon an already great light (LX6200).


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Old 01/31/2017, 08:42 PM   #25
Goby go
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Join Date: Dec 2014
Location: Gulf coast
Posts: 37
I've got 1x 6200 that is from 2012/11 w/ retro'ed 6200 clusters, 1x 6200 w/ 2013/11 date code, all have been running for years! Great lights, just recently added a third 6200 over my 240g!




Absolutely no issues, great lights!!!


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