4500 LUMENS DLP PROJECTOR NP4001. The NP4001 has 4500 lumens- 1280x768 WXGA resolution- 2100:1 onstract ratio- single chip DLP Technology- Lamp life 2000 hours normal and 2500 hours eco mode. Complete line of optional bayonet style lenses. Dual lamp operation providing redundancy. Complete control of projector using RS-232/LAN from a control system.