10 LEVEL&STEPLESS DIMMING :0-100% stepless brightness control, also has a memory function. Long press the side physical button to set the brightness steplessly, short press the physical button to adjust the brightness by 10% each time, there are 10 levels of brightness, bright enough to evenly illuminate several layers of paper without glare. EYE PROTECTION TECHNOLOGY: LED light source tracing light box emits uniform eye protection light, flicker-free and anti-blue light, no spots, no shadows. The full frame design does not leak light, so you can devote yourself to painting.The eye protection design makes it also a great choice for cultivating children's interest in learning A3 LIGHT BOARD WITH INDEPENDENT STAND: Size: 17.3 inches high x 13.2 inches wide, This A3 light box has an external stand, you can adjust the light pad to the position you want. USB powered with a Type-C charging port, can be easily plugged into a laptop, power bank, USB adapter. MULTI-SCENARIO USE: This LED diamond art light board is ideal for sketching drawing, sewing projects, scanning film negatives, stenciling, embossing, scrapbooking, tattoo transferring, stained glass, x-ray viewing etc. It can also be a good gift choice for kids and family in Valentine's Day, Mother's Day, Easter, Christmas and so on. SATISFACTION GUARANTEED WARRANTY: We proudly stand behind all our products. If you have any quality or operational issues with your purchase, please contact us through Amazon and we will respond within 24 hours.