Overhead Projector

AN INVALUABLE AID TO TEACHING & PRESENTATION. Provides a crisp and bright image on the screen in daylight in a room, of any drawing,sketch or writing on a transparent cellophane sheet,or with ready made transparencies. The projector is built around a 250x250 mm aperture Fresnel lens,mounted on a sturdy sheet metal body.The tilting projection head is carried on a square section column and is provided with rack and pinion arrangement for focussing. Two 24 V 250 Watt halogen lamps are provided with a quick change-over lever to enable use of one lamp at a time,thus obviating any interruption should any lamp go out of order. An electronic control enables light intensity to be adjusted and is also interlocked with the on-off switch to protect against any voltage surge on switching on. An efficient blower cooling system keeps the transparency stage cool. The top cover is designed to open only after disconnecting power supply thus ensuring safety against electric shocks. Complete with detachable power cable. Works on 220-240 V A.C 50 Hz.