30W mini zoom calligraphy and painting lamp, using high-definition optical zoom system, zoom angle from 25 degrees to 45 degrees arbitrarily adjusted, suitable for projection distance of 2m to 4m, with a variety of control methods, remote control control, mobile phone download aPP control, voice control (can be single-selected), with one-key color temperature adjustment function, from 2700K to 5600K arbitrary adjustment, with remote control brightness adjustment function, this household is suitable for museums, calligraphy and painting exhibitions, showrooms and other scenes