hygger Clip On Full Spectrum Aquarium LED Light, 18W Day-Night Dual Timer Sunrise-Day-Sunset-Moon Fish Tank Light, Adjustable Timer Brightness with 9 Colors for Planted Tank

I absolutely love this light, I purchased the 22W for 25-31inch long tank. My tank is a 20gal. 30in long, 12in deep, 12in high. I love that the brackets are adjustable. It fits my tank perfectly. The bracket though, the part that slides onto the light itself was very difficult to slide on, we had to hammer it in. Then the braket part that clips to the tank was not a perfect fit, so if you look in the photos there is a blue block my husband 3d printed inorder to have something between the clip and the tank to hold it in place. I included a time lapse video of the timed day time. There is a cool sunrise effect that takes 30 minutes to go from a dusk light to a bright light when pushed. I have this setting on the 12hr timer. The moonlight timer is really neat, as you can choose which color you want it. The day light you can't choose, it is just day light. Overall this thing functions perfectly and is a great quality. I just added it to my planted aquarium to help establish the plants before I add fish, so I am really hoping the plants take off and grow super happy. The plants look great under the light though. It is a really nice even distributed light! I will add, the plug ... The plug beeps. When the timers are set, their light flashes and when the light flashes there is a beep, that is a small beep, but if your tank and plugs are siting next to the couch where your ear is, you can hear the beep... And the beep is annoying.

This is a very good light. I have been using it for 6 months. The main full spectrum light works great with six levels of intensity. I usually keep it at about 3 or 4 during most of the day. The highest setting is exceptionally bright. The lower settings are good for the evenings. The moonlight settings work well. I usually set it for blue in the late evening and early morning hours. There are also 6 levels of intensity with each moonlight color setting. I wish the moonlight colors could go brighter, but maybe that's because they are meant to be moonlight. You do have to cycle thru the colors to get to the one you want, I always feel like I am freaking out my fish sort of, when I do that. The negatives: It was somewhat challenging to set up. I found it hard to attach the main body of the light to the arm. I did get it eventually. Also, attaching the light to my fish tank, took some creativity. I have a rimless tank. On the outside of the glass, I put a piece of bike tire inner tube and then a cut piece of wood paint stirrer, to cushion the tank glass from the plastic screws of the light arm when they are tightened. It worked out well. You also have to adjust how far you want the light to come out into the middle of the tank and that was somewhat of a delicate procedure. This all worked out, but I think this all should have been a bit easier to do. I never really used the programable daylight to moonlight and back settings. The majority of the daylight is the highest intensity setting which I think is over the top for all day. I wanted to review this light because I am very pleased with it so far. It lights up my aquarium beautifully and the choice of daylight intensities is very good.

Light is great. Love the night/day settings. Takes a bit to figure out but once you do it is easy. Looks good on my 35in long rimless tank. I am taking one star back because I think this may have been a return. One of the mounting bracket had both of the plastic screws stripped in the bracket base. This is preventing them from being tightened down. I was able to work around this issues by replacing the plastic screws with metals ones and forcing them through the stripped holes forcing new threads. I used felt padding against the glass for the new bolts to press against to not damage the tank. I understand the use of plastic mounts but the bracket should be redesigned as I can see how these part easily get stripped.

If you have a rimmed tank you NEED a spacer for this light to attach to the tank. I cut some acrylic pieces which came out to be 10 mm thick. They really should upgrade the design because many people have rimmed tanks. The description says it fits a rimmed tank but it definitely doesn't work. Otherwise this light is awesome. It simulates sunrise, sunset and moonlight automatically. It is really cool!

I purchased this light for my 89 gallon above ground patio pond for the plants and to have light at night when I sitting on my patio,this little light does the job with know problem,highly recommend any of Hygger products, I've been using them for years and no issues

I rated this 3 stars due to several issues I've hard with my light, though I wish there was half stars so I would give 3.5. When I received the unit the buttons on the controls were extremely hard to press in order to change through modes or turn on. So hard in fact that my hands hurt trying to press it. The only way I was able to remedy this defect was to press it with something hard and sharp, which then left an indent in the controls and then made it easier for me to press it with no issue. I realize my light was probably the odd one out with this issue. The plastic screws that hold it up are extremely hard to twist into the holes of the base or out of. This also hurts my hands. I wish this light didn't cause so much physical pain towards me. It also doesnt have a timer like the large Hygger I have on my 40 gallon tank, in which you can press the button to phase through the cycles of the day. The timer is self-paced so you have to set it at whatever time you need it to accordingly because it only has 3, 6, and 9 hour timing options with no way to skip through different phases of a 24 hour cycle like my larger other model does. This is something that I really wish this model had. Nonetheless, it's a beautiful light, and Hygger's products are usually of very top quality. There are just a few quips I have with the way this model was made, but it still serves as a fine bright light for planted aquariums. Hopefully others don't face the same issues.

Great quality, good looking, and has so many features and timers that I don't need any other lighting accessory.

Funcionó 1 dia y ya no prendió más. La segunda pantalla bien para la potencia marcada para el producto.

First impression: really great light and nice features. But after connecting it, I noticed that the wire connection is kind of loose somewhere. Everytime I touch or simply graze the wire, the light come off and on and I have to reprogram the whole thing the next day. It’s not a big deal but quite frustrating. EDIT: I removed one more star as all the controls are dead now. I can’t even close the light with the controller I have to disconnect the wire. Unless it’s a problem with my unit, avoid this crap.

Je l'aime bien mais elle manque de puissance pour le même prix avoir su j'aurais pris une rampe un peut plus haut de gamme Elle fait ce qu'elle a a faire mais ces pas avec cette lumière que je vais faire pousser un fond de pelouse dans l'aquarium

Worked for approximately a year. I was previously happy with it. It began flickering and the 24hr cycle doesn't cycle correctly either any more. Contacted the seller and they mentioned there is only 30 days. If it was a cheaper light, I would just write it off and forget about it but this thing wasn't exactly cheap for how long it lasted. Not worth it...