Projection Lens 1 element 254mm Condenser System Fresenel condenser Aperture 250x250mm Projection Lamp 24V 250W Single/Twin lamp or 240V 600W halogen tube Power Source AC 220-240 Volt Projected Distance 100x100cm to 240x240cm Cooling System Forced Air Cooling Projection distance 1.5 to 3 meter Focusing Fine focusing system with rack & pinion Safety Interlock Good interlock system Power Cable Detachable power cable system Lamp Safety Electronic light control system