Transparencies upto 25x25 cms can be projected from its horizontal, flat stage and can be operated on battery also.
An efficient high speed motorised cooling fan. working noiselessly on exhaust. Operating Switches: Two special toggle switches, with symbols for the Fan and lamb.Safety Measures: For protection of lamp and fresnels lens etc. a Thermostat in Circuit starts the fan Automatically within 25 Seconds of switching on the lamp, andturns off, of its own only after the lamp is sufficiently cooled.Writing Scroll: A roll up scroll of transparent sheet10"x8 meters, built-in a metallic frame is attachable to the projector stage by 4 knurled Knobs.