hygger 20W Aquarium LED Light, Fish Tank Full Spectrum Lighting with 24/7 Day-Night Cycle Mode & Auto On/Off Timer, Adjustable Brightness, 7 Colors Options, Extendable Bracket for 45~60cm Freshwater

I bought this for a Fluval Roman 90 to replace the old tube bulbs, and it has worked out really well. The 20W unit gives plenty of light for the whole tank and has been strong enough to grow plants. If you wanted extra coverage at the front you could add one of the smaller sizes, but for most setups this single light is more than enough. The build quality is better than expected at this price. It even fell into the tank and stayed there for a couple of days before I noticed, and it still works perfectly. My only complaint is that the timer and day-night cycle controls are not intuitive at all and the instructions are not clear, but with a bit of patience you can figure it out. For the price, it is excellent value and performs far better than I expected.

This light is perfect for my tank, and it really delivers on everything it promises. The 24/7 day-night cycle is a game changer—I love how it mimics a natural light cycle from sunrise to sunset. The blue light at night is especially cool, and my Glofish look amazing under it. It’s bright enough to show off the colors in the tank without being overpowering. The best part is that once I set the schedule, I haven’t had to mess with it at all—it’s truly a set-it-and-forget-it system, which is super convenient. Plus, my plants have been growing a lot better since I started using this light, so that’s a huge win. Overall, if you're looking for a reliable, easy-to-use aquarium light that looks great and works perfectly, this one’s definitely worth it.

After having a couple of previous models which were lacking and difficult to setup, I thought I would try this model and see how it compares. I can honestly say I am delighted with this model. For the price it is excellent for plants, reliable and easy to set up and adjust. The sunrise sunset feature is brilliant (no pun intended) with both sunrise and sunset lasting a couple of hours each end of the daylight section of the program. The start time is 10 am earliest but this can be adjusted by advancing the time slot forward in 2 hour slots. So if it’s 10 am and you select 12 am on the time setting, the program will begin at 8am. The length of day is also fully adjustable in 2 hour slots. The max light button is handy if you want to do some work in the aquarium outside of the program, press to get maximum full spectrum light, press again to return to your preset settings. Only downside I have found is if losing power the time setting defaults to 10 am but it’s easy to readjust to the time previously set. Your day length setting will not be lost. If you dont want sunrise sunset options there is also a button to select 6 ,10 or 12 hour timings and the intensity from 10 to 100% in 10% intervals. All in all a great light, excellent value for money.

La compré para un acuario de 100 litros e ilumina por completo todo. Tiene varios colores, un cronómetro de 6, 10 y 12 horas como también tiene para modificar la intensidad de la luz desde 10 al 100%.

Very pleased with the quality of this aquarium LED light. Ability to raise and lower the brightness of the various colors is a big plus. I found the video from Hygger to be quite helpful when explaining how to set the various settings afforded by this light. The various light colors provided are very vibrant and adds to the overall atmosphere created in my 30 gallon fish tank. I would definitely purchase another one if needed.