I own two of these lights. both on 55gal tanks. I really like the way the lighting looks. the night light is awesome. your electric bill will also thank you.

the downside, one of my lights flickered out after about 10 months. I contacted marineland and they sent me a replacement immediately, which is great! I had the light under a canopy hood, the manufacturer suspected moisture damage. consider this when purchasing.

with all this said, I would buy it again.

I have a Marineland Double Bright LED on a 36G corner community tank. There are really no special lighting needs, I just wanted to be able to see my fish. This works fine. I wish Marineland made a seperate circuit for the moon lights so it can be set up on a timer. I bought another led strip for moonlights I could put on timer. But if you are OK with flipping the switch, this unit will work just fine. I do like that it doesn't get hot like some of my other lights.

I purchased 2 36" ML DBL Bright for my 125g.

I've been attracted to LED for their energy efficiency, but didn't want to pay an arm and a leg for them
I was able to find them on sale for $129, a great price where avg retail is $169-189.

Its unfortunate the units are covered by my canopy because they're well designed - all black sleek, slim, lightweight, reminiscent of an airfoil.

They must be operated over glass as moisture may damage internal components.
The legs extend to 48" or can be completely removed.

The LEDs cast a bright white light into the 22" depth of my tank. I don't have any live plants in my tank although some ppl have suggested other LED unit for this purpose.

The moonlights look great for my 72" setup. Bright enough to see all the fish swim, but dark enough to entice my syno multipunctus come out of hiding and forge.

One switch toggles the LEDs from ON/OFF/moonlight.
A common gripe I share is the single swith for the lights. Many ppl agree that the lights should have been on separate switches - 1) Full/ON/OFF and
2) ON/OFF/moonlight

On that note, there is an excellent mod for this exact quirk in the Library DIY section which I may attempt in the future. A great mod if you want to put your lights on timers.

The LEDs market is growing, but the ML DBL bright were fit my needs for price I bought them for.

I recently bought the 24-36" double bright for less than $100 on ebay. I intended to use it on my 65 gal high african tank. It was no where near enough light for the 65 but it looks incredible on my 44 pent corner molly tank. The actinic is a novelty at best.

Received the Marineland 27 Cube with double bright LED lighting and was concerned because about growing live plants since I wasn't sure if the lighting would be adequate in the deep 20" high tank. I dediced to try live plants anyway and they are all doing very well! Actually the lighing is so good, I'm having a problem keeping up with the algae. I love the daylight shimmer and moonlight effects.

It was a bargain to purchase with the tank, stand, and cover, but to purchase seperately, it's kind of expensive.

Received my Marineland DoubleBright 48 X 60 for my 75 gallon. Unbelievalbe difference in light, beautiful shimmering moonlight off of "Holey Rock". You have to see it in person.Any videos or photographs will not capture the way this light reflects. All my Cichlid Tanks will be using a Marineland Double Bright!

Bought this a couple months ago I love the sunligt effect.

perfect for what i wanted which was a slight shimmer effect, i have the 36" on my 48" tank and it lights up the entire tank space wonderfully!!

Bought the 36"-48" model for my 60G tank. In the end I was unsatisfied with its performance so I'm moving it to a shallower smaller aquarium in the house.

I do enjoy the shimmering daylight effect off of the lenses on the LEDS...looks like sun rays beaming through the water.

It's just not powerful enough for a deeper aquarium. It still works great on my 30G 36" tank.

It is so slim, from my desk you can't even tell there is fixture on top of the tank.

I gave the light high marks for quality and value as both seem fine -- the problem is that the brightness is not remotely adequate. I bought the 36-48 size for a 40 breeder (which is a shallow tank) and it doesn't remotely light the tank adequately. I'm returning it. If you have a desire to actually SEE your fish in the tank, I don't recommend this light.

I'm very happy with this lighting kit. I have two 36" units on a 110 gallon tank. My tank is only 19" deep and the lights are perfect for this size of tank. If the tank was deeper, they might not be so good. They provide a very white light. Very sleek and easy to use. Were a bit expensive but I have no regrets about the purchase.

I just have purchased the 36"-48" Double Bright for my 55 gallon and I have to say they are well worth the money. For over 1/2 the cost of other lighting this slim and sleek looking light outperformed all expectations. Only fault is not being able to put both moonlights and day time light on separate timers, but there is a mod out there for it.

Over all the the quality really seems to be there, and the moonlights give off just the right amount at night with tons of shimmer to it. Highly recommend this to anyone not looking to spend alot of money and still demand quality lighting!

I bought the 36 inch on 1-20-11 and love the way it looks on my 55 with my lab and zebra tank. The lights are bright and give a great shimmer effect. they do fall off on each side creating some darker ares but that is look I like. The blue LEDs work good for moomlights. The one issue people have is that the white lights and blue lights can not be on seperate timers but that was not an issue for me. I will have to put something in front of the light as two much light leaks out between it and the Glass cover a piece of molding works well according to some posts I read.

I am marking these lights against other manufactured LED systems I have seen - obviously DIYing LEDs would make these seem like bad value!
I liken the brightness of these lights (on a standard 38 G) to HD television on an old news anchor - they reveal all the wrinkles. My saulosi show their colours extremely well, but I can now see faint bars on my females that I never noticed before.
The fact that they are a row of spots makes for a very nice effect in the water - the shimmer reminds me very much of sunlight.
Hooking up and running the lights is dead simple - it would be nice if the blue lights and white lights could be run on separate switches - hence the 7 in ease of use. There's a fix here: https://www.cichlid-forum.com/phpBB/viewtopic.php?t=214742&sid=59c63465d1e1c58647667521458e00d4
I will be laying two sets of these lights directly on my two glass canopies of my 125 G tank - so I've removed the feet - they are only meant to go over the end of the tank. It would be nice if there was a different footing option for such scenarios - I'm not the only person with a 72" tank.
The lights are very slim and unobtrusive.
I like that they are very low energy and will (should) last a very long time.

I just picked up the 36" model of this unit, and it arrived yesterday. It replaced a T5 light, and it looks very good, lighting is brighter than I had expected for only LED lighting, and there is a nice sunlight effect through the moving water. Ease of use marked at 7 only for the lighting control, there is no timer option, and becuase the day/night switch is physically on the fixture, it can only be controlled manually.

Updated: after a month I still like the way the light looks and works, but definitely notice that any matter in the water now shows up much more. The increased light clarity, increases how much you notice junk in water streams