ViewSonic SP3 4800 Lumens SVGA High Brightness Projector Projector for Home & Office w/ Auto Power Off & SuperColor™ Technology: Energy EfficiencyExtended LifespanUsers can choose different lamp mode to extend the lamp’s lifespan. When Power Saving setting is on and without any signal input, the projector will automatically switch to Eco Mode and SuperEco ModeEco Mode: This projector automatically switches from Normal to Ec