A:AnswerYou have to plug them into the wall for power. They are connected to your phone via wifi. You control the color and brightness of the lights from an app on your phone.
A:AnswerThe power supply went out on my Hue light strip and I purchased the following which replaced three Hue power supplies ao the answer is yes, if you get the correct transformer.
elxjar-Adjustable-Converter-110V-220V-Transformer B07SY7HFJX
A:AnswerNo, when you cut it you lose the piece you cut off. There may be some third party products but none which I know of which will allow you to add a connector and extend the useful piece or use the cut off piece.
A:AnswerYou could but it would not be bright enough using the stripes. You should do the bulbs they are perfect for the job. They are also dimable and voice activated
A:AnswerThe strips create millions of colors for ambient light. That requires the effects to come from using different shades across a few leds on the strip. You can try a different shade or add a light diffuser to make the different leds blend better.