I got this tree without high expectations of it being very bright or that sturdy but to be honest I was blown away. This is an awesome little tree. It can be powered by batteries or BY USB with an included Micro USB cable. I find the lights are a bit brighter when be powered by USB but maybe my batteries just weren't the best so that could just be in my testing. Overall it's a neat little decoration that came well packaged and I should be able to use for years to come.