LCD Screen 8.4 10.4 15 inch LCD real color touch screen Light conducting system 7 jointed arms to conduct light Wavelength 10.6μm Pulsed radiofrequency 0.530W Tube Type USA RF tube Glass tube Power 30W Mode Normal scan Laser energy 1-30W 5-45mj Step value 1W 5mj Figure option Square, Triangle, Round, Rectangle, agon