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Graph-X Universal Photoprinting Lamp

This is a 400-800W Spade Terminals bulb which can be used in domestic and commercial applications
Quick Find: 12170
Part No: GRAPH-X
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Quick Find: 12170
Part No: GRAPH-X

Cap Type
Spade Terminals

Cap/Base Type

202 mm

Half Aluminised

110 mm

Light Bulb Type

Leading Brand

Light Bulb

100 Volt

400-800 W

Graph-X Universal Photoprinting Lamp from Leading Brand

Model: GRAPH-X

The Graph-X is a high wattage ultra-violet reflector lamp, created by Thorn Electrical Industries in the late 1960's. It was developed following a programme of experimentation to determine which metal halide salts would be of most use for the creation of improved metal halide lamps, and some of these materials were found to deliver a spectral output that was suited to lamps for non-lighting applications.

This lamp is based on the iodides of gallium and iron which together, radiate strongly in the blue and UV-A regions of the spectrum. A wide band of radiation between 315nm and 420nm is emitted which makes its output particularly suited to the fields of photo-printing, graphic arts, photo-resists, diazo photopolymer reproduction and other materis. The stippled front lens acts as a most effective spreader, homogenising the light and giving an elliptical beam distribution measuring approximately 24" x 36" at a distance of 2/3 feet infront of the lamp.

It is intended for operation at either 400 or 800 Watts. Lamp life is quite short and electricity consumption rather high at full power, and the lamp takes a minute or so to run up to this level. A system was developed which simmers the lamp at 400W, and when switched to the higher power the response in output is immediate, thus saving electricity and lamp life.

Technical Specifications

Light Bulb Type Photographic
Wattage 400-800 W
Manufacturer Leading Brand
Diameter 202 mm
Finish Half Aluminised
Length 110 mm
Cap/Base Type Specialist
Type Light Bulb
Manufacturers Average Lamp Life 1000 hrs
Voltage 100 Volt
Cap Type Spade Terminals

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