DIY Block Desk Lamp

Creative building blocks design,7 color blocks could be arbitrary DIY your own rainbow, unique decorative light.
5V Low voltage , very safe and suitable for all ages (3+ and up)
Built-in SMD LED bulbs, lifetime up to 20000 hours. Energy saving and environment friendly. Scrub transparent lampshade provide your eyes.
Touch sensor control switch, 3 levels different brightness adjustment. To turn it on, just tap the touch button. Each time you tap it, it gets brighter. The fourth tap turns it off
Power supply by USB cable or 3*AA batteries (battery not included). Output: DC 5V, 500mA, 2W