Royal "Ediswan" Neon Glow Pilot Indictor

Manufacturer: The British Thomson-Houston Co. Ltd.
Lamp Power: 2 Watts
Lamp Current:
Lamp Voltage:
Cap: B15d/24x17 (Brass)
Bulb Finish: Clear
Bulb Type: T-18
Overall Length:54mm
Light Centre Length:
Electrodes: Iron Ring above a flat plate
Atmosphere: 1.5% Argon in Neon
Luminous Flux:
Luminous Efficacy:
Colour Temperature & CRI: Not Published
Chromaticity Co-ordinates: Not Published
Rated Life: Not Published
Factory: Ponders End England
Date of Manufacture: May 1944 Date Code: 29
Original Value: GB £0 3s 6d (1048)
References: 1) Ediswan Lamp Catalogue, UK, 1948, p.16