hygger Fish Aquarium LED Light, 14W 24/7 Lighting Sunrise-Daylight-Moonlight Mode DIY , Adjustable Timer/Brightness with Extendable Bracket 7 Colors for Planted Tank

It's a very pretty light fixture, but I have no idea how well it works because there is no adapter in the box. I immediately contacted the seller and will edit this review when and if I can actually get power to the light fixture. Edit: The seller replied the same day and is shipping me an adapter with no additional cost or hassle. I will edit again when it arrives, hopefully to review the how well or poor the fixture operates. Edit: The adapter was delivered as promised, and the light was pleasantly surprising. It is much brighter than I expected. The timers, including the 24 hour simulation, work great. I am having no issues with excess heat from the power supply like some others have reported. This is a great fixture, and even better when considering the price tag as compared with similar aquarium lights with timers. I look forward to seeing my plants thrive. One year update: I had it set on the daylight simulation mode for a year. The bad thing about that is I stopped paying attention to its operation. I started to get horrible algae problems, then finally realized that the simulation mode is malfunctioning. The orange light from 6 am to 8 am is more often bright white light instead, and only sometimes the milder, less intensive orange. The bright white light stays on until 8 pm, at which point it turns blue until the end of the cycle. That's 14 hours of bright white light, which is 4 hours too many. I cannot adjust any of it in the simulation mode, so I'm now trying to decide if I want to put the light on a timer, but if I do so many of the nice features of the light, like the orange in the morning, the changing intensity during the day, and the blue at night, will be useless. My advice - Do not set it and forget it. If you use the simulation mode make sure you pay attention, or you're liable to get bad algae issues and stressed fish.

Great light - love the 24/7 auto on/off function that changes colors to replicate the sunrise, peak brightness thru the day, then darkening towards sundown and eventually powering off. The multiple color options serve me no function, but are unique to the LED options. Probably more useful is the brightness control for use with fish, reptiles, or plants.

I like it, great value, shipped well, lots of lighting options, I’ve only been using for about 2 weeks so far, no issues yet. So much better than the generic light i previously had. I really like the sunrise/daylight/moonlight timer option but after trying it a few days I realized I’m going to have to wait till I have some surface plants like Amazon frog bit or some other floating plants that will provide some shade for my fish during the brightest a hours of the cycle, I think the sunlight timer option is too bright for him until I have more shaded areas. The brightness dimming options are great but didn’t show up well when I tried to video, I don’t really need any of the solid color options but they are fun to have. Overall I’m quite pleased with it and I think I’ll be able to grow more aquatic plants now. For reference, I ordered the 18W for 18”-24” tanks, I have a 20”, 10gallon tank.

Quality construction. Easy to set up (I have it on the auto 24-hour setting). The light is bright and I really like the dawn / day / night gradual light changes. No more startling the fish with the sudden on/off. I bought two smaller ones for 10 gallon tanks. The brackets on one aren't exactly square so it doesn't fit the tank quite as well as the other one. Not a big enough issue to return it. I've only had them a few weeks but so far so good. Time will tell. I ordered a third one for a larger tank. Update after owning them for a year. I still like them but have found some downsides. There are two light setting modes. One allows you to set the light color, intensity, and duration (6, 10, or 12 hours). In this mode, the light gradually turns on, stays on for a set period of time, and gradually turns off. The is the mode I'm using now. My only complaint here is there is no 8 hour duration option. The second mode is what I was originally looking for. The light gradually turns on with orange/red light to mimic sunrise, and gradually turns off with blue light to mimic sunset/night. The problem is the daylight stays on at full intensity for too long (something like 15-16 hours). You can't adjust anything in this second mode. It is what it is. It turned out to be way too much light and I constantly had algae problems. Gave up and switched to mode one. It would be great if they could combine the two modes and give the user a little more flexibility. Good luck.

This is a beautiful and well-designed aquarium light. It’s adjustable to fit different tank lengths and feels very stable once installed. The built-in programs are flexible and can be customized to suit different needs. Even when using the 6/10/12-hour modes, the light turns on gradually rather than all at once, which prevents sudden stress and doesn’t startle the fish. The ability to control the light intensity is extremely useful, especially for aquariums with live plants. I definitely recommend this light!

It works really well. It has two adjustable height modes onto my 10 gallon tank which is ~20 inches long. 24/7 mode makes me not have to worry about the tank's lighting at all. To expand on the fit, you may be a little careful as the outer legs that extend don't really "lock" or have any friction when expanding or retracting them. Meaning if you move the light a little bit you risk off-centering it. The light stays a consistent brightness and seems to be designed very well with waterproofing in mind (of course) and the top of it is pretty sleek too. You can move it forward and back along your tank easily too. Fits nice. There are also timer modes and adjustable brightness. One other to mention is the RGB mode where it cycles through colors, but I wouldn't recommend using that mode for your fish or plants.

This is a great little light, has lots of features and colours. Has a timer function and a 24/7 function or a manual on off if you prefer. Really good value light

Was excited to get this, am glad I did. Stunning! Love it!

Excelente lampara , buena iluminacion para mi acuario de 200 lts. facil de comprender y de programar. muy recomendable

Took a bit to figure out the timer but good product

When I received lights were good but has a fault that when I want on bright light it doesn’t stay on , I have to bang the plug and it will go on for few seconds but then off again …so obviously a faulty connection somewhere. Amazon won’t give contact details of seller for me to contact or refund , so guess I have to use on dull lights #annoying