Koller Products AC Power Adapter for Aquariums, 4.5-volt

By Koller Products
Rated 4.625 out of 5 stars
$11.67Chewy Price

In Stock
FREE 1-3 day delivery over $35

About This Item


  • Low-voltage transformer to be used with aquarium kits featuring battery-powered LED lights.
  • Adapter operates the aquarium's LED lights from electrical power outlet saving you money on batteries.
  • Perfect for those tired of changing batteries every few days.
  • For use with KollerCraft aquariums with battery-powered LED lights.
  • Convenient 70" power cord length and a 4.5 volt power adapter.

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Questions & Answers

3 Customer Questions

Will this work for a 6.5 hexagon shape gallon fish tank? I have one but it didn't come with the AC adapter for the hood in order to work the lights.
Answer by ChewyApr 14, 2021
This low-voltage transformer is designed to be used with Koller aquarium kits featuring battery-powered LED lights.

Can anyone tell me why there are two different plugs shown in this picture? I actually use an android charger with a power supply for a cell phone and it works just fine.
Answer by ChewyMar 25, 2021
This adapter converts AC electrical power into the DC power required by your aquarium’s LED lighting with a convenient 70 inch power cord.

How many mA is this? I'm trying to find for another product.
Answer by ChewyDec 03, 2019
This power adaptor has 4500 Milliamps.

ReviewsWrite a Review

Rated 4.625 out of 5 stars
8 Ratings
Would recommend to a friend

8 Customer Reviews

Rated 5 out of 5 stars
By Alexander on Sep 15, 2023


Not on the daily battery change is nice.

Rated 5 out of 5 stars
By PetManiac on Feb 5, 2021

Excellent Product

I have been using one of these on the first Koller aquarium I purchased at least three years ago. Initially I used the battery option but it was eating me out of house and home as they constantly had to be replaced. This power adapter is simply perfect and appears to have a long life. I will be setting up my second aquarium using the one I just purchased.

Rated 3 out of 5 stars
By Azdrydock on May 8, 2018

It works just fine.

I just needed 4.5 volts DC it had nothing to do with an aquarium. The Transformer actually puts out 7 volts DC but it turned out fine for my application.

Rated 4 out of 5 stars
By Guppies on Mar 26, 2018

Good product

Good product. Fast shipping and services. Works great.

Rated 5 out of 5 stars
By Deedee on Sep 17, 2017

Power adapter

This is fantastic. Just what I needed. No more battery changes every 2 days. Love it. Super fast shipping

Rated 5 out of 5 stars
By 1happydogowner on May 25, 2017

Sure does beat using batteries

I do not know why this manufacture did not include this power cord to run the light on this fish tank but if you buy this tank you will want this. I bought rechargeable batteries but even that was a pain bc I had to change the batteries every day!

Rated 5 out of 5 stars
By LadyTonka on Feb 25, 2017

Exactly what we needed

The product is perfect. The packaging was flawlessly intact, fresh off the shelf. It plugged right in and has worked perfectly every day.

Rated 5 out of 5 stars
By DogMom on Dec 15, 2016

Power Adapter

exactly what I needed light works better with the ac adapter and colors are more sharp