UK USED Dell projector, mode 4610x, lumen:3500, lamp life: 2, 000 hour.
Lightweight Versatility: Weighing just over 6 pounds, the Dell 4610X Wireless PLUS
Projector can be used from desktops or ceiling-mounted and operates in both front- and
rear-projection modes [ceiling mount kit sold separately].
Wireless : Cable-free signal connectivity to wireless-enabled PCs