I love these lights! They're super bright, they're LED, they super cool. You only have to down load the app and provide the block for them to work or computer/tv. Used a charging block. It worked like a charm. They're sticky on the back to stick anywhere you want to. They're in my craft room for mood lighting which I love! I love them alot! I highly recommend these if you want some cool lights or mood lighting they're perfect!