Huion 24’’ A3 Size Lightness Adjustable Built-in Battery USB Cable LED Portable Drawing Tracing Stencil Board Tattoo Light Box with Kenting Stander，Clip，6 Pieces of Tracing Paper，Cleaning Cloth-LB3H[Product Information]- Battery and USB mode are available. The LB3 drawing tracing pad can get powered by either built-in Battery or USB cable. After full charged， you can take it out anywhere and feel never feel restrict by the USB cable.
- Adjustable Brightness. You may adjust the light by simply touching the touch switch. Brightness could reach 2200 Lux Maximum(USB Mode). It’s brighter than the L4S model.
- Extremely thin. This light board is 8 mm in thickness. With a compact， sleek and graceful design， its 1.665 KG weight is very easy to bring with.
- Gets very little heat. Suitable for long hour working. Life time 50，000 hours' long.
- LB3 light box’s LED cold light source protect your eyes carefully， providing the most comfortable lighting environment for animators， designers， engineer， tattooist， doctor， art enthusiasts.
