ONF Flat Nano+ 15W Full Spectrum Aquarium Light, Up to 20 Level Dimmable APP Controlled Light, IP54 Waterproof Light, Suitable for 2-9 Gallon Rimless Fish Tanks, Terrariums, & Potted Plants, Black

I’ve owned aquariums for a long time now, and this light by far is my favorite. The light looks so modern and sleek, and was so easy to install. Just make sure you have a rimless tank. This picture is of a 5 gallon tank, and the light is set to 50%. I love how you have 4 settings. 25%,50%,75%,100%. This light makes my plants and fish pop so much. I have not used the Bluetooth yet, because i just plugged it into my timer. I hope this light grows my plants well, which I’m confident it will. This LED is worth every penny and i promise you’ll love it!

The media could not be loaded. Probably the best lights I’ve ever purchased. The sleek design and swivel head makes it easy to attend to plants and aquarium maintenance. It doesn’t get in the way unlike other lights that nest over the aquarium on two ends which makes it hard to do anything in the aquarium without having to put it down or it falling in. The height of the light can be adjusted up and down. There’s no wonky screws sticking out because it’s been designed to be as sleek and clean as possible.The app works flawlessly so you can adjust the times and brightness to your aquariums residents needs. It doesn’t get as hot as other lights so this won’t burn you if you need to move it around.

I now have two of these lights. They have been amazing for nano scapes and I never get close to max brightness. Any nano tank should do well with one of these and the app was easy to install and use despite some of the negative reviews on that feature. Only con is that it's definitely a premium price and if you are on a budget there are good options for less.

I purchased this light to use on my 6 gallon betta tank. Compared to my Twinstar 450S on the tank next to it, it's significantly dimmer and cooler. It's probably plenty of light for the 6 gallon tank but I wouldn't use it on anything larger than 10 gallons. I don't like the color rendition nearly as much as with the Twinstar, which was comparable in price.The ONS does give you app control whereas the Twinstar does not, and you must purchase a dimmer separately for the Twinstar. Point ONS.I'm not very impressed with the build quality. It's plasticky and there is a lot of play in the mounting bracket. This means you'll have to skew the bracket by 5-10 degrees in order for the light to be parallel to the water surface.edited 11/28/22 - still not terribly impressed with this light. The app is beyond useless. Once you set it up, there doesn't seem to be any way to edit time of day the light increases or decreases intensity. The help option in the app takes you to an ONF webpage that doesn't exist. In hindsight, I wouldn't have purchased this light. Dropping to one star because of how awful the app is.

Firstly the description says 20” but nothing about this light is 20”. The light bar itself is 11.5”..my fault I should have read the specs. The tank attachment relies on metal screws that don’t even have protectors so it can scratch your tank. The app is awful and the colors are not adjustable. It looks nice, has a nice light, and was beautifully packaged, but I’d just go with the Fluval 3.0 which is way better, and you get MUCH more for the money. This item is way over priced.

Put this on a 5 gallon planted tank. Too much power. Excellent light.

The lights was sleek and functional from the start.Pros• really bright lights with customizable dimness settings•compact and look clean in any aquarium set up (especially with open tank look)Cons• the rubber ring that hold up the light in the mounting piece is not as strong and will slip every other day• the app doesn’t not work after the initial set up of the light (the light continues to work as scheduled but you can adjust anything after the first set up)•manual light control button doesn’t work as well and very difficult to access and press•does not come with Allen wrench to adjust light mountOverall the light it self is good with what you need it to do. The problems that arises can be annoying especially for the price point of the light.

For aquariums, it’s the best light. I also put Flat Nano+ for my houseplants - Hoyas. The results are amazing. Easy sunstressed and grow so much faster. Have this product for like almost three months, I don’t have no complaints! Definitely worth the price!