Sunnydaze 5-Stream Rock Cavern 13.5-Inch Tabletop Water Fountain with LED Multi-Colored Lights - Electric Submersible Pump

Does it require batteries

i am wondering if this fountian can be modified and expanded

My plug gets warm, is that normal? i have other fountains and the transformers do not get warm. this one gets fairly warm. is this to be expected?

What color is the light? Thanks!