Smiful LED Aquarium Light, Fish Tank Light Submersible Underwater Crystal Glass LEDs Lights (7.5"-Blue)

I wanted to turn off the main overhead of my fish tank to lengthen the lifespan of the bulb and give the fish a semblance of night/day. This really helps! It gives off a soft blue light like moonlight and its enough to let them see where they are. Currently I have it stuck on the outside of the tank and on a timer. I want to now try it on the inside and see if its a touch brighter. I also have a 6 led light that rotates colors on the other side but one led is out. The fish gravitate towards either end but some do stay in the middle darker area. In short, it is exactly what I wanted and I will probably also order one in white, maybe for another tank section.Note: I have a 50 gallon tank, freshwater with tons of guppies!

Cool light. It looks purple in the pic but it’s actually more neon blue. The fish like it. Works great. Worth the money.

lots of power for a small lighttwo were able to light my 40 gallon tank enough to see fish, but not enough to be bothersome to someone in the room

I bought this for my hermit crabs since they prefer to come out at night and I was having trouble seeing them. The light is a bit bright, but it doesn’t seem to bother them. It helps that the LEDs are inside a tube that can be rotated to direct the light toward the back of their tank. Another huge bonus for me is that it won’t get messed up from the high humidity because it’s waterproof (the struggle is real). It was super easy to set up, I just stuck it on the glass lid of the tank and plugged it into my outlet timer. Very happy!

I was really looking for a night light or early morning light for the aquarium as I have my fish in the basement and they are not exposed to natural daylight. I don't want to keep the regular light on all the time as it produces too much algae so this light was brought to come on a couple hours prior to the regular light. Its a bit brighter than i wanted but works well the way i have fitted it outside the aquarium. No issues

Awesome product very easy assembly light works great for night time use, it's like moon light for the fish love the light I would recommend that the light to other people.

I really like this light!!! I had the old type of light from 25 years ago on my tank. I decided to try LED lights but I didn’t want bright white. I bought the blue version of this. Only wish the suction cups were better. I also wish I’d bought the longer one but other than that, it’s very pretty & I think my bottom feeders prefer it.

I purchased 2 of these for my aquariums because the day lights when on a timer are either full on or full off, so i wanted a blue light at night. I hooked this up to an Alexa compatible timer outlet and it comes on when the main light goes off. I am happy with this purchase.