indoor LED display 1 Energy-saving, environmental protection, durable. 2 SMD type, super ... voltage; 190-250VAC/90-130VACGrey scale/color; RGB each 256levels/16.7MOperation humidity; 10%~9.5%Input invotage; 5VInput signal; DVI, S ... +optical fiber transmissionWorking life; >50,000 HoursMalfunction dot rate; Below 0.0001Operating System; Win98, win2000, winXP, Vista etcControl Software; LED Studio2 ...