A Simple but Interesting MTB Room Decor and Gift for Girls & Boys!Light Up Your Room! As room decoration, it will take the guests' attention and start an interesting topic about the 3D effect!Color Your Dream! As a night light, you can set the color you prefer, then it will guard you all night and lead you a colorful dream! Ideal as a bedside lamp. Collections for girls, boys, kids, motocross fans!The 3D dirt bike illusion lamp is a combination of art and technology. The 3D effect seems vivid, but as you get closer, you will see a flat sheet. It's bound to dazzle and impress your friends, especially at night!Package:1 * Dirt Bike sign acrylic plate1 * lamp base1 * 5 foot USB cable 1 * use manualQ: Why only some colors work after a few days?A: With the USB cable included, you can plug it in with a 5V USB port, such as a computer/ power bank/ 5V plug, as usual, phone socket works well. When it happens only red and green colors could work, it means it's low voltage, pls replace the batteries (not included) OR change the charger you are using. Q: Why the 3D effect is not vivid?A: First, please remove the protective films on both sides before use. Second, we suggest you put it in a dark room for a better 3D effect. You know, it's a night light. Third, please stand a little further. As you get closer, you will see a flat sheet, but from afar, the 3D effect will be vivid.