Description: Name: LED light box drawing trace board Material: Acrylic Light source: LED Power: USB Line voltage: 5V Rated power: 5W Item size: A5 240*150*3.5mm A4:335*235*3.5mm We only provide you with a USB cable to connect to a universal phone adapter, mobile power or computer USB interface. The power adapter is not included. If the indicator light flashes after turning the power on, don't worry, this is normal. This means that the power input does not match this product. You can solve the problem by replacing the charger, charging treasure or computer interface. Specifications: Provides clearer, brighter views in templates, sketches, tattoo drawings, diamond paintings, X-ray observations, and more. Protect your eyes, not flicker, or even light. Press and hold the power button to adjust the brightness steplessly and easily find the best brightness. Intelligent brightness memory function, when turned on, the brightness will automatically enter the same state as the last time Send using a USB cable, you can connect to a phone adapter, computer, power pack, etc. Acrylic sheets have high transparency, high toughness and durability. 3.5mm ultra-thin and lightweight design, easy to carry and carry. Plug and play, easy to use, saves more creation time Package Included: Light Board*1 USB Cable*1