We offer Overhead Projector (ASW-13)ยป Specifications Projection Lens1- Element 254 mmAperture250 mm x 250 mmCondenser SystemFresenel CondenserProjection Lamp24V 150W or 250W Single or Twin lamp240V 600W Halogen TubeFoldingFold away ArmHead Rotation180oPower SourceAC 220-240 VoltProjected distance100 cms x 100 cms to 240 cms x 240 cmsCooling SystemFine blower cooledProjection distance1.5 to 3 MeterFocussingFine Focussing System with Rack & PinionSafety InterlockGood Interlock SystemPower CableDetachable Power Cable SystemLamp SafetyElectronic Light Control SystemWeight 9 Kgs.