AquaScene 1-Gallon Fish Tank with LED Lighting and Natural Biological Filtration Energy-efficient LED lighting with 7 dazzling color choices to brightly illuminate your fish; choose daylight white, blue, green, amber, aqua, purple, or red. Includes built-in timer, set your LED light to come on at the same time every day, timer enables you to select light settings of 2 Hours, 4 Hours or Continuous On easily with a flick of your finger. Made of impact-resistant plastic with crystal-clear clarity so good that most think it's made of glass plus one-piece construction providing superior strength and durability, unlike glass tanks glued together with silicone, this trendy shaped tank puts to rest any worries or concerns about possible leaks. Natural biological filtration (UGF) keeps tank crystal clear and your fish healthy. Takes 3 AAA batteries (not included); optional Koller Products 5V Power Adapter (AQ51000) enables light to be plugged into electrical outlet, available online; includes USB cord connector that allows you to plug LED light into USB outlet, computer USB port, or 5v power adapter. Easy to set up and maintain, this trendy fish tank will look good wherever you place it. Dimensions: 10.5" L x 7.5" W x 10.25" H.