GE Lamps manual Explanation of lamp codes

Explanation of lamp codes

Lamps listed in this catalogue are those designed for use as follows:

A1 Prefix - L.I.F. (Lighting Industries Federation) reference indicates lamps which were primarily designed for use with slide, film and overhead projectors.

ANSI Codes - These are 3-letter codes assigned by the American National Standards Institute. They provide a system for assuring mechanical and electrical interchangeability among similarly coded lamps from various manufacturers.

CP Prefix - Lamps designed for use in conjunction with film balanced for 3200K. These are single ended types intended for use in Fresnel/ellipsoidal luminaires etc.

P2 Prefix - Again for use with 3200K film stock for open faced luminaires and video sun guns.

P1 Prefix - For use with 3400K film stock.

T Prefix - Lamps intended for theatre luminaire applications. These are of lower colour temperature (2900 - 3050K) and longer life than the often similar CP types above.

C.S.I. - Discharge lamps with a colour temperature of around 4000K for outside broadcast and follow spot use.

C.I.D. - Discharge lamps with a colour temperature of 5500-6000K for location filming and applications such as disco lighting where a very bright compact source is required.

GE LIGHTING - ENTERTAINMENT LIGHTING CATALOGUE 79